Vulnerability-Lookup

BDU:2026-16199 (CVE-2026-76453)

Vulnerability from fstec – Published: 2026-10-12 – Updated: 2026-10-12 – View on bdu.fstec.ru Fixed

Title

Уязвимость операционной системы Cisco NX-OS, связанная с недостаточным обеспечением правильности сообщения или структуры данных, позволяющая нарушителю оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Summary

Уязвимость операционной системы Cisco NX-OS связана с недостаточным обеспечением правильности сообщения или структуры данных. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, оказать воздействие на конфиденциальность, целостность и доступность защищаемой информации

Severity

9.0 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:S/C:C/I:C/A:C

8.8 (High) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Class

Architecture vulnerability

Status

Confirmed by the vendor

Exploitation

Data structure manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-707 - Недостаточное обеспечение правильности сообщения или структуры данных

Aliases

CVE-2026-76453

References

1 reference

URL
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/c…

Impacted products

1 product from 2 vendors

Vendors

Cisco Systems, Inc.

Products

NX-OS

Versions

до 9.4(5a) (NX-OS), до 10.3(10) (NX-OS), от 10.4 до 10.4(8) (NX-OS), от 10.5 до 10.5(6) (NX-OS), от 10.6 до 10.6(4) (NX-OS), до 8.4(14) (NX-OS), до 16.0(9h) (NX-OS), от 16.1 до 16.1(6g) (NX-OS), от 16.2 до 16.2(3g) (NX-OS), до 4.3(6j) (NX-OS), до 4.3(6.260049) (NX-OS), до 4.3(6.260059) (NX-OS), от 6.0 до 6.0(2e) (NX-OS), от 6.0 до 6.0(2.260080) (NX-OS)

Product types

Operating system

Platforms

Cisco Systems, Inc. NX-OS до 9.4(5a) Cisco MDS 9000 Series Multilayer Switches, Inc. NX-OS до 10.3(10) Cisco Nexus 3000 Series Switches, Inc. NX-OS до 10.3(10) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Inc. NX-OS от 10.4 до 10.4(8) Cisco Nexus 3000 Series Switches, Inc. NX-OS от 10.4 до 10.4(8) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Inc. NX-OS от 10.5 до 10.5(6) Cisco Nexus 3000 Series Switches, Inc. NX-OS от 10.5 до 10.5(6) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Inc. NX-OS от 10.6 до 10.6(4) Cisco Nexus 3000 Series Switches, Inc. NX-OS от 10.6 до 10.6(4) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Inc. NX-OS до 8.4(14) Cisco Nexus 7000 Series Switches, Inc. NX-OS до 16.0(9h) Cisco Nexus 9000 Series Fabric Switches in ACI mode, Inc. NX-OS от 16.1 до 16.1(6g) Cisco Nexus 9000 Series Fabric Switches in ACI mode, Inc. NX-OS от 16.2 до 16.2(3g) Cisco Nexus 9000 Series Fabric Switches in ACI mode, Inc. NX-OS до 4.3(6j) Cisco UCS 6300, Inc. NX-OS до 4.3(6j) Cisco UCS 6400, Inc. NX-OS до 4.3(6j) Cisco UCS 6500, Inc. NX-OS до 4.3(6j) Cisco UCS 6600, Inc. NX-OS до 4.3(6j) Cisco UCS Fabric Interconnect 9108 100G, Inc. NX-OS до 4.3(6.260049) Cisco UCS 6300, Inc. NX-OS до 4.3(6.260049) Cisco UCS 6400, Inc. NX-OS до 4.3(6.260049) Cisco UCS 6500, Inc. NX-OS до 4.3(6.260049) Cisco UCS 6600, Inc. NX-OS до 4.3(6.260049) Cisco UCS Fabric Interconnect 9108 100G, Inc. NX-OS до 4.3(6.260059) Cisco UCS 6300, Inc. NX-OS до 4.3(6.260059) Cisco UCS 6400, Inc. NX-OS до 4.3(6.260059) Cisco UCS 6500, Inc. NX-OS до 4.3(6.260059) Cisco UCS 6600, Inc. NX-OS до 4.3(6.260059) Cisco UCS Fabric Interconnect 9108 100G, Inc. NX-OS от 6.0 до 6.0(2e) Cisco UCS 6300, Inc. NX-OS от 6.0 до 6.0(2e) Cisco UCS 6400, Inc. NX-OS от 6.0 до 6.0(2e) Cisco UCS 6500, Inc. NX-OS от 6.0 до 6.0(2e) Cisco UCS 6600, Inc. NX-OS от 6.0 до 6.0(2e) Cisco UCS Fabric Interconnect 9108 100G, Inc. NX-OS от 6.0 до 6.0(2.260080) Cisco UCS 6300, Inc. NX-OS от 6.0 до 6.0(2.260080) Cisco UCS 6400, Inc. NX-OS от 6.0 до 6.0(2.260080) Cisco UCS 6500, Inc. NX-OS от 6.0 до 6.0(2.260080) Cisco UCS 6600, Inc. NX-OS от 6.0 до 6.0(2.260080) Cisco UCS Fabric Interconnect 9108 100G

Mitigations

Использование рекомендаций: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 9.4(5a) (NX-OS), \u0434\u043e 10.3(10) (NX-OS), \u043e\u0442 10.4 \u0434\u043e 10.4(8) (NX-OS), \u043e\u0442 10.5 \u0434\u043e 10.5(6) (NX-OS), \u043e\u0442 10.6 \u0434\u043e 10.6(4) (NX-OS), \u0434\u043e 8.4(14) (NX-OS), \u0434\u043e 16.0(9h) (NX-OS), \u043e\u0442 16.1 \u0434\u043e 16.1(6g) (NX-OS), \u043e\u0442 16.2 \u0434\u043e 16.2(3g) (NX-OS), \u0434\u043e 4.3(6j) (NX-OS), \u0434\u043e 4.3(6.260049) (NX-OS), \u0434\u043e 4.3(6.260059) (NX-OS), \u043e\u0442 6.0 \u0434\u043e 6.0(2e) (NX-OS), \u043e\u0442 6.0 \u0434\u043e 6.0(2.260080) (NX-OS)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439:\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "07.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "12.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "12.10.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-16199",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-76453",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "NX-OS",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": "Cisco Systems, Inc. NX-OS \u0434\u043e 9.4(5a) Cisco MDS 9000 Series Multilayer Switches, Cisco Systems, Inc. NX-OS \u0434\u043e 10.3(10) Cisco Nexus 3000 Series Switches, Cisco Systems, Inc. NX-OS \u0434\u043e 10.3(10) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Cisco Systems, Inc. NX-OS \u043e\u0442 10.4 \u0434\u043e 10.4(8) Cisco Nexus 3000 Series Switches, Cisco Systems, Inc. NX-OS \u043e\u0442 10.4 \u0434\u043e 10.4(8) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Cisco Systems, Inc. NX-OS \u043e\u0442 10.5 \u0434\u043e 10.5(6) Cisco Nexus 3000 Series Switches, Cisco Systems, Inc. NX-OS \u043e\u0442 10.5 \u0434\u043e 10.5(6) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Cisco Systems, Inc. NX-OS \u043e\u0442 10.6 \u0434\u043e 10.6(4) Cisco Nexus 3000 Series Switches, Cisco Systems, Inc. NX-OS \u043e\u0442 10.6 \u0434\u043e 10.6(4) Cisco Nexus 9000 Series Switches in standalone NX-OS mode, Cisco Systems, Inc. NX-OS \u0434\u043e 8.4(14) Cisco Nexus 7000 Series Switches, Cisco Systems, Inc. NX-OS \u0434\u043e 16.0(9h) Cisco Nexus 9000 Series Fabric Switches in ACI mode, Cisco Systems, Inc. NX-OS \u043e\u0442 16.1 \u0434\u043e 16.1(6g) Cisco Nexus 9000 Series Fabric Switches in ACI mode, Cisco Systems, Inc. NX-OS \u043e\u0442 16.2 \u0434\u043e 16.2(3g) Cisco Nexus 9000 Series Fabric Switches in ACI mode, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6j) Cisco UCS 6300, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6j) Cisco UCS 6400, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6j) Cisco UCS 6500, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6j) Cisco UCS 6600, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6j) Cisco UCS Fabric Interconnect 9108 100G, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260049) Cisco UCS 6300, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260049) Cisco UCS 6400, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260049) Cisco UCS 6500, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260049) Cisco UCS 6600, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260049) Cisco UCS Fabric Interconnect 9108 100G, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260059) Cisco UCS 6300, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260059) Cisco UCS 6400, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260059) Cisco UCS 6500, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260059) Cisco UCS 6600, Cisco Systems, Inc. NX-OS \u0434\u043e 4.3(6.260059) Cisco UCS Fabric Interconnect 9108 100G, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2e) Cisco UCS 6300, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2e) Cisco UCS 6400, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2e) Cisco UCS 6500, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2e) Cisco UCS 6600, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2e) Cisco UCS Fabric Interconnect 9108 100G, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2.260080) Cisco UCS 6300, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2.260080) Cisco UCS 6400, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2.260080) Cisco UCS 6500, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2.260080) Cisco UCS 6600, Cisco Systems, Inc. NX-OS \u043e\u0442 6.0 \u0434\u043e 6.0(2.260080) Cisco UCS Fabric Interconnect 9108 100G",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco NX-OS, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f  \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u044b\u043c \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435\u043c \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0438\u043b\u0438 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0435 \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435 \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0438\u043b\u0438 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445 (CWE-707)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco NX-OS \u0441\u0432\u044f\u0437\u0430\u043d\u0430  \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u044b\u043c \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u0435\u043c \u043f\u0440\u0430\u0432\u0438\u043b\u044c\u043d\u043e\u0441\u0442\u0438 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f \u0438\u043b\u0438 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u044b \u0434\u0430\u043d\u043d\u044b\u0445. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u043e\u043a\u0430\u0437\u0430\u0442\u044c \u0432\u043e\u0437\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0435 \u043d\u0430 \u043a\u043e\u043d\u0444\u0438\u0434\u0435\u043d\u0446\u0438\u0430\u043b\u044c\u043d\u043e\u0441\u0442\u044c, \u0446\u0435\u043b\u043e\u0441\u0442\u043d\u043e\u0441\u0442\u044c \u0438 \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430\u043c\u0438 \u0434\u0430\u043d\u043d\u044b\u0445",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u0430\u044f \u0441\u0438\u0441\u0442\u0435\u043c\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-707",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 8,8)"
}

CVE-2026-76453 (GCVE-0-2026-76453)

Vulnerability from cvelistv5 – Published: 2026-10-07 16:12 – Updated: 2026-10-08 13:00

Title

Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Neutralization Vulnerabilities

Summary

As part of Cisco's ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities. The vulnerabilities tracked by CVE-2026-76453 are related to improper neutralization issues that are grouped under the Common Weakness Enumeration (CWE) CWE-707.

Severity

8.8 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-08 03:55 UTC

CWE

CWE-707 - Improper Neutralization

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 376 records in the last 180 days details

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

3 products

Vendor	Product	Version
Cisco	Cisco NX-OS Software	Affected: 8.2(5) Affected: 7.3(5)D1(1) Affected: 8.4(2) Affected: 8.4(3) Affected: 9.2(3) Affected: 8.2(1) Affected: 7.3(1)D1(1) Affected: 9.2(2v) Affected: 7.3(0)D1(1) Affected: 7.3(4)D1(1) Affected: 9.2(1) Affected: 9.2(2t) Affected: 9.2(3y) Affected: 9.3(2) Affected: 7.3(1)DY(1) Affected: 8.1(1) Affected: 8.2(2) Affected: 8.3(2) Affected: 7.3(2)D1(3a) Affected: 9.2(4) Affected: 8.1(2) Affected: 7.3(3)D1(1) Affected: 8.2(3) Affected: 8.3(1) Affected: 8.4(1) Affected: 8.1(1b) Affected: 7.3(0)DX(1) Affected: 7.3(2)D1(1) Affected: 9.3(1) Affected: 7.3(2)D1(2) Affected: 8.2(4) Affected: 7.3(0)DY(1) Affected: 9.3(1z) Affected: 9.2(2) Affected: 8.1(2a) Affected: 7.3(2)D1(3) Affected: 8.1(1a) Affected: 8.4(1a) Affected: 9.3(3) Affected: 7.3(2)D1(1d) Affected: 9.3(4) Affected: 7.3(6)D1(1) Affected: 8.2(6) Affected: 9.3(5) Affected: 8.4(2a) Affected: 8.4(2b) Affected: 8.5(1) Affected: 9.3(6) Affected: 8.4(4) Affected: 7.3(7)D1(1) Affected: 8.4(2c) Affected: 9.3(5w) Affected: 8.2(7) Affected: 9.3(7) Affected: 9.3(7k) Affected: 7.3(8)D1(1) Affected: 9.3(7a) Affected: 8.2(7a) Affected: 9.3(8) Affected: 8.4(4a) Affected: 8.4(2d) Affected: 8.4(5) Affected: 8.2(8) Affected: 9.3(9) Affected: 7.3(9)D1(1) Affected: 8.4(6) Affected: 8.4(2e) Affected: 9.3(10) Affected: 9.2(1a) Affected: 8.2(9) Affected: 10.3(1) Affected: 8.4(7) Affected: 10.3(2) Affected: 8.4(6a) Affected: 9.3(11) Affected: 10.3(3) Affected: 9.4(1) Affected: 9.3(2a) Affected: 8.4(2f) Affected: 8.2(10) Affected: 9.3(12) Affected: 10.4(1) Affected: 8.4(8) Affected: 10.3(99w) Affected: 10.3(3w) Affected: 10.3(99x) Affected: 10.3(3o) Affected: 8.4(9) Affected: 10.3(4) Affected: 10.3(3p) Affected: 10.3(4a) Affected: 9.4(1a) Affected: 10.4(2) Affected: 10.3(3q) Affected: 9.3(13) Affected: 8.2(11) Affected: 9.4(2) Affected: 10.3(5) Affected: 10.4(3) Affected: 10.3(3x) Affected: 10.3(4g) Affected: 10.5(1) Affected: 8.4(10) Affected: 9.4(2a) Affected: 10.3(3r) Affected: 10.3(6) Affected: 9.3(14) Affected: 10.4(4) Affected: 10.3(4h) Affected: 10.5(2) Affected: 10.5(1j) Affected: 8.4(11) Affected: 9.4(3) Affected: 10.3(7) Affected: 10.4(5) Affected: 10.5(3) Affected: 9.3(15) Affected: 9.4(3a) Affected: 10.4(4g) Affected: 10.5(4) Affected: 9.4(3b) Affected: 8.4(12) Affected: 10.6(1) Affected: 10.5(3t) Affected: 10.3(8) Affected: 10.4(6) Affected: 10.5(3s) Affected: 10.5(3e) Affected: 9.4(4) Affected: 10.5(3o) Affected: 9.3(16) Affected: 10.6(1s) Affected: 10.6(2) Affected: 10.5(3p) Affected: 9.4(5) Affected: 10.3(9) Affected: 10.6(2s) Affected: 8.4(13) Affected: 10.6(3) Affected: 10.4(7) Affected: 10.5(5) Affected: 9.3(17) Affected: 10.6(2n) Affected: 10.6(3q) Affected: 10.6(3o) Affected: 10.6(3s)
Cisco	Cisco NX-OS System Software in ACI Mode	Affected: 15.2(1g) Affected: 15.2(2e) Affected: 15.2(2f) Affected: 15.2(2g) Affected: 15.2(2h) Affected: 15.2(3f) Affected: 15.2(3e) Affected: 15.2(3g) Affected: 15.2(4d) Affected: 15.2(4e) Affected: 15.2(5c) Affected: 15.2(5d) Affected: 16.0(1g) Affected: 15.2(5e) Affected: 15.2(4f) Affected: 15.2(6e) Affected: 15.2(6h) Affected: 16.0(1j) Affected: 15.2(6g) Affected: 15.2(7f) Affected: 15.2(7g) Affected: 16.0(2h) Affected: 15.2(8d) Affected: 16.0(2j) Affected: 15.2(8e) Affected: 16.0(3d) Affected: 16.0(3e) Affected: 15.2(8f) Affected: 15.2(8g) Affected: 15.3(1d) Affected: 15.2(8h) Affected: 16.0(4c) Affected: 15.3(2a) Affected: 15.2(8i) Affected: 16.0(5h) Affected: 15.3(2b) Affected: 16.0(3g) Affected: 16.0(5j) Affected: 15.3(2c) Affected: 16.0(6c) Affected: 15.3(2d) Affected: 16.1(1f) Affected: 16.0(7e) Affected: 16.0(8e) Affected: 15.3(2e) Affected: 16.0(8f) Affected: 16.1(2f) Affected: 16.1(2g) Affected: 15.3(2f) Affected: 16.0(9c) Affected: 16.1(3f) Affected: 16.0(9d) Affected: 16.0(6h) Affected: 16.0(8h) Affected: 16.1(3g) Affected: 16.0(9e) Affected: 16.1(4h) Affected: 16.1(5e) Affected: 16.2(1g) Affected: 16.0(9f) Affected: 16.2(2e)
Cisco	Cisco Unified Computing System (Managed)	Affected: 4.0(1a) Affected: 4.1(1d) Affected: 4.0(4f) Affected: 4.0(4c) Affected: 4.0(2b) Affected: 4.1(2a) Affected: 4.0(4a) Affected: 4.0(4e) Affected: 4.0(4h) Affected: 4.0(2a) Affected: 4.1(1c) Affected: 4.0(1b) Affected: 4.1(1e) Affected: 4.0(4d) Affected: 4.0(4b) Affected: 4.0(2e) Affected: 4.1(1a) Affected: 4.0(4g) Affected: 4.0(1d) Affected: 4.0(1c) Affected: 4.0(4i) Affected: 4.0(2d) Affected: 4.1(1b) Affected: 4.1(2b) Affected: 4.0(4k) Affected: 4.1(3a) Affected: 4.1(3b) Affected: 4.1(2c) Affected: 4.0(4l) Affected: 4.1(4a) Affected: 4.1(3c) Affected: 4.1(3d) Affected: 4.2(1c) Affected: 4.2(1d) Affected: 4.0(4m) Affected: 4.1(3e) Affected: 4.2(1f) Affected: 4.1(3f) Affected: 4.2(1i) Affected: 4.1(3h) Affected: 4.2(1k) Affected: 4.2(1l) Affected: 4.0(4n) Affected: 4.2(1m) Affected: 4.1(3i) Affected: 4.2(2a) Affected: 4.2(1n) Affected: 4.1(3j) Affected: 4.2(2c) Affected: 4.2(2d) Affected: 4.2(3b) Affected: 4.1(3k) Affected: 4.0(4o) Affected: 4.2(2e) Affected: 4.2(3d) Affected: 4.2(3e) Affected: 4.2(3g) Affected: 4.1(3l) Affected: 4.3(2b) Affected: 4.2(3h) Affected: 4.2(3i) Affected: 4.3(2c) Affected: 4.1(3m) Affected: 4.3(2e) Affected: 4.3(3a) Affected: 4.2(3j) Affected: 4.3(3c) Affected: 4.3(4a) Affected: 4.2(3k) Affected: 4.3(4b) Affected: 4.3(4c) Affected: 4.2(3l) Affected: 4.3(4d) Affected: 4.3(2f) Affected: 4.2(3m) Affected: 4.3(5a) Affected: 4.3(4e) Affected: 4.1(3n) Affected: 4.3(4f) Affected: 4.2(3n) Affected: 4.3(5c) Affected: 4.2(3o) Affected: 4.3(5d) Affected: 4.3(6a) Affected: 4.3(6b) Affected: 4.3(5e) Affected: 4.3(6c) Affected: 4.2(3p) Affected: 6.0(1b) Affected: 6.0(1c) Affected: 4.3(6d) Affected: 6.0(1d) Affected: 6.0(1e) Affected: 4.3(6e) Affected: 6.0(1f) Affected: 4.3(6f) Affected: 6.0(2b) Affected: 6.0(1h) Affected: 4.2(3r) Affected: 6.0(2c) Affected: 4.3(6g) Affected: 6.0(2d) Affected: 4.3(6h) Affected: 4.2(3s) Affected: 4.3(6i)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-76453",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-08T03:55:51.785472Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-08T13:00:07.473Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco NX-OS Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "8.2(5)"
            },
            {
              "status": "affected",
              "version": "7.3(5)D1(1)"
            },
            {
              "status": "affected",
              "version": "8.4(2)"
            },
            {
              "status": "affected",
              "version": "8.4(3)"
            },
            {
              "status": "affected",
              "version": "9.2(3)"
            },
            {
              "status": "affected",
              "version": "8.2(1)"
            },
            {
              "status": "affected",
              "version": "7.3(1)D1(1)"
            },
            {
              "status": "affected",
              "version": "9.2(2v)"
            },
            {
              "status": "affected",
              "version": "7.3(0)D1(1)"
            },
            {
              "status": "affected",
              "version": "7.3(4)D1(1)"
            },
            {
              "status": "affected",
              "version": "9.2(1)"
            },
            {
              "status": "affected",
              "version": "9.2(2t)"
            },
            {
              "status": "affected",
              "version": "9.2(3y)"
            },
            {
              "status": "affected",
              "version": "9.3(2)"
            },
            {
              "status": "affected",
              "version": "7.3(1)DY(1)"
            },
            {
              "status": "affected",
              "version": "8.1(1)"
            },
            {
              "status": "affected",
              "version": "8.2(2)"
            },
            {
              "status": "affected",
              "version": "8.3(2)"
            },
            {
              "status": "affected",
              "version": "7.3(2)D1(3a)"
            },
            {
              "status": "affected",
              "version": "9.2(4)"
            },
            {
              "status": "affected",
              "version": "8.1(2)"
            },
            {
              "status": "affected",
              "version": "7.3(3)D1(1)"
            },
            {
              "status": "affected",
              "version": "8.2(3)"
            },
            {
              "status": "affected",
              "version": "8.3(1)"
            },
            {
              "status": "affected",
              "version": "8.4(1)"
            },
            {
              "status": "affected",
              "version": "8.1(1b)"
            },
            {
              "status": "affected",
              "version": "7.3(0)DX(1)"
            },
            {
              "status": "affected",
              "version": "7.3(2)D1(1)"
            },
            {
              "status": "affected",
              "version": "9.3(1)"
            },
            {
              "status": "affected",
              "version": "7.3(2)D1(2)"
            },
            {
              "status": "affected",
              "version": "8.2(4)"
            },
            {
              "status": "affected",
              "version": "7.3(0)DY(1)"
            },
            {
              "status": "affected",
              "version": "9.3(1z)"
            },
            {
              "status": "affected",
              "version": "9.2(2)"
            },
            {
              "status": "affected",
              "version": "8.1(2a)"
            },
            {
              "status": "affected",
              "version": "7.3(2)D1(3)"
            },
            {
              "status": "affected",
              "version": "8.1(1a)"
            },
            {
              "status": "affected",
              "version": "8.4(1a)"
            },
            {
              "status": "affected",
              "version": "9.3(3)"
            },
            {
              "status": "affected",
              "version": "7.3(2)D1(1d)"
            },
            {
              "status": "affected",
              "version": "9.3(4)"
            },
            {
              "status": "affected",
              "version": "7.3(6)D1(1)"
            },
            {
              "status": "affected",
              "version": "8.2(6)"
            },
            {
              "status": "affected",
              "version": "9.3(5)"
            },
            {
              "status": "affected",
              "version": "8.4(2a)"
            },
            {
              "status": "affected",
              "version": "8.4(2b)"
            },
            {
              "status": "affected",
              "version": "8.5(1)"
            },
            {
              "status": "affected",
              "version": "9.3(6)"
            },
            {
              "status": "affected",
              "version": "8.4(4)"
            },
            {
              "status": "affected",
              "version": "7.3(7)D1(1)"
            },
            {
              "status": "affected",
              "version": "8.4(2c)"
            },
            {
              "status": "affected",
              "version": "9.3(5w)"
            },
            {
              "status": "affected",
              "version": "8.2(7)"
            },
            {
              "status": "affected",
              "version": "9.3(7)"
            },
            {
              "status": "affected",
              "version": "9.3(7k)"
            },
            {
              "status": "affected",
              "version": "7.3(8)D1(1)"
            },
            {
              "status": "affected",
              "version": "9.3(7a)"
            },
            {
              "status": "affected",
              "version": "8.2(7a)"
            },
            {
              "status": "affected",
              "version": "9.3(8)"
            },
            {
              "status": "affected",
              "version": "8.4(4a)"
            },
            {
              "status": "affected",
              "version": "8.4(2d)"
            },
            {
              "status": "affected",
              "version": "8.4(5)"
            },
            {
              "status": "affected",
              "version": "8.2(8)"
            },
            {
              "status": "affected",
              "version": "9.3(9)"
            },
            {
              "status": "affected",
              "version": "7.3(9)D1(1)"
            },
            {
              "status": "affected",
              "version": "8.4(6)"
            },
            {
              "status": "affected",
              "version": "8.4(2e)"
            },
            {
              "status": "affected",
              "version": "9.3(10)"
            },
            {
              "status": "affected",
              "version": "9.2(1a)"
            },
            {
              "status": "affected",
              "version": "8.2(9)"
            },
            {
              "status": "affected",
              "version": "10.3(1)"
            },
            {
              "status": "affected",
              "version": "8.4(7)"
            },
            {
              "status": "affected",
              "version": "10.3(2)"
            },
            {
              "status": "affected",
              "version": "8.4(6a)"
            },
            {
              "status": "affected",
              "version": "9.3(11)"
            },
            {
              "status": "affected",
              "version": "10.3(3)"
            },
            {
              "status": "affected",
              "version": "9.4(1)"
            },
            {
              "status": "affected",
              "version": "9.3(2a)"
            },
            {
              "status": "affected",
              "version": "8.4(2f)"
            },
            {
              "status": "affected",
              "version": "8.2(10)"
            },
            {
              "status": "affected",
              "version": "9.3(12)"
            },
            {
              "status": "affected",
              "version": "10.4(1)"
            },
            {
              "status": "affected",
              "version": "8.4(8)"
            },
            {
              "status": "affected",
              "version": "10.3(99w)"
            },
            {
              "status": "affected",
              "version": "10.3(3w)"
            },
            {
              "status": "affected",
              "version": "10.3(99x)"
            },
            {
              "status": "affected",
              "version": "10.3(3o)"
            },
            {
              "status": "affected",
              "version": "8.4(9)"
            },
            {
              "status": "affected",
              "version": "10.3(4)"
            },
            {
              "status": "affected",
              "version": "10.3(3p)"
            },
            {
              "status": "affected",
              "version": "10.3(4a)"
            },
            {
              "status": "affected",
              "version": "9.4(1a)"
            },
            {
              "status": "affected",
              "version": "10.4(2)"
            },
            {
              "status": "affected",
              "version": "10.3(3q)"
            },
            {
              "status": "affected",
              "version": "9.3(13)"
            },
            {
              "status": "affected",
              "version": "8.2(11)"
            },
            {
              "status": "affected",
              "version": "9.4(2)"
            },
            {
              "status": "affected",
              "version": "10.3(5)"
            },
            {
              "status": "affected",
              "version": "10.4(3)"
            },
            {
              "status": "affected",
              "version": "10.3(3x)"
            },
            {
              "status": "affected",
              "version": "10.3(4g)"
            },
            {
              "status": "affected",
              "version": "10.5(1)"
            },
            {
              "status": "affected",
              "version": "8.4(10)"
            },
            {
              "status": "affected",
              "version": "9.4(2a)"
            },
            {
              "status": "affected",
              "version": "10.3(3r)"
            },
            {
              "status": "affected",
              "version": "10.3(6)"
            },
            {
              "status": "affected",
              "version": "9.3(14)"
            },
            {
              "status": "affected",
              "version": "10.4(4)"
            },
            {
              "status": "affected",
              "version": "10.3(4h)"
            },
            {
              "status": "affected",
              "version": "10.5(2)"
            },
            {
              "status": "affected",
              "version": "10.5(1j)"
            },
            {
              "status": "affected",
              "version": "8.4(11)"
            },
            {
              "status": "affected",
              "version": "9.4(3)"
            },
            {
              "status": "affected",
              "version": "10.3(7)"
            },
            {
              "status": "affected",
              "version": "10.4(5)"
            },
            {
              "status": "affected",
              "version": "10.5(3)"
            },
            {
              "status": "affected",
              "version": "9.3(15)"
            },
            {
              "status": "affected",
              "version": "9.4(3a)"
            },
            {
              "status": "affected",
              "version": "10.4(4g)"
            },
            {
              "status": "affected",
              "version": "10.5(4)"
            },
            {
              "status": "affected",
              "version": "9.4(3b)"
            },
            {
              "status": "affected",
              "version": "8.4(12)"
            },
            {
              "status": "affected",
              "version": "10.6(1)"
            },
            {
              "status": "affected",
              "version": "10.5(3t)"
            },
            {
              "status": "affected",
              "version": "10.3(8)"
            },
            {
              "status": "affected",
              "version": "10.4(6)"
            },
            {
              "status": "affected",
              "version": "10.5(3s)"
            },
            {
              "status": "affected",
              "version": "10.5(3e)"
            },
            {
              "status": "affected",
              "version": "9.4(4)"
            },
            {
              "status": "affected",
              "version": "10.5(3o)"
            },
            {
              "status": "affected",
              "version": "9.3(16)"
            },
            {
              "status": "affected",
              "version": "10.6(1s)"
            },
            {
              "status": "affected",
              "version": "10.6(2)"
            },
            {
              "status": "affected",
              "version": "10.5(3p)"
            },
            {
              "status": "affected",
              "version": "9.4(5)"
            },
            {
              "status": "affected",
              "version": "10.3(9)"
            },
            {
              "status": "affected",
              "version": "10.6(2s)"
            },
            {
              "status": "affected",
              "version": "8.4(13)"
            },
            {
              "status": "affected",
              "version": "10.6(3)"
            },
            {
              "status": "affected",
              "version": "10.4(7)"
            },
            {
              "status": "affected",
              "version": "10.5(5)"
            },
            {
              "status": "affected",
              "version": "9.3(17)"
            },
            {
              "status": "affected",
              "version": "10.6(2n)"
            },
            {
              "status": "affected",
              "version": "10.6(3q)"
            },
            {
              "status": "affected",
              "version": "10.6(3o)"
            },
            {
              "status": "affected",
              "version": "10.6(3s)"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Cisco NX-OS System Software in ACI Mode",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "15.2(1g)"
            },
            {
              "status": "affected",
              "version": "15.2(2e)"
            },
            {
              "status": "affected",
              "version": "15.2(2f)"
            },
            {
              "status": "affected",
              "version": "15.2(2g)"
            },
            {
              "status": "affected",
              "version": "15.2(2h)"
            },
            {
              "status": "affected",
              "version": "15.2(3f)"
            },
            {
              "status": "affected",
              "version": "15.2(3e)"
            },
            {
              "status": "affected",
              "version": "15.2(3g)"
            },
            {
              "status": "affected",
              "version": "15.2(4d)"
            },
            {
              "status": "affected",
              "version": "15.2(4e)"
            },
            {
              "status": "affected",
              "version": "15.2(5c)"
            },
            {
              "status": "affected",
              "version": "15.2(5d)"
            },
            {
              "status": "affected",
              "version": "16.0(1g)"
            },
            {
              "status": "affected",
              "version": "15.2(5e)"
            },
            {
              "status": "affected",
              "version": "15.2(4f)"
            },
            {
              "status": "affected",
              "version": "15.2(6e)"
            },
            {
              "status": "affected",
              "version": "15.2(6h)"
            },
            {
              "status": "affected",
              "version": "16.0(1j)"
            },
            {
              "status": "affected",
              "version": "15.2(6g)"
            },
            {
              "status": "affected",
              "version": "15.2(7f)"
            },
            {
              "status": "affected",
              "version": "15.2(7g)"
            },
            {
              "status": "affected",
              "version": "16.0(2h)"
            },
            {
              "status": "affected",
              "version": "15.2(8d)"
            },
            {
              "status": "affected",
              "version": "16.0(2j)"
            },
            {
              "status": "affected",
              "version": "15.2(8e)"
            },
            {
              "status": "affected",
              "version": "16.0(3d)"
            },
            {
              "status": "affected",
              "version": "16.0(3e)"
            },
            {
              "status": "affected",
              "version": "15.2(8f)"
            },
            {
              "status": "affected",
              "version": "15.2(8g)"
            },
            {
              "status": "affected",
              "version": "15.3(1d)"
            },
            {
              "status": "affected",
              "version": "15.2(8h)"
            },
            {
              "status": "affected",
              "version": "16.0(4c)"
            },
            {
              "status": "affected",
              "version": "15.3(2a)"
            },
            {
              "status": "affected",
              "version": "15.2(8i)"
            },
            {
              "status": "affected",
              "version": "16.0(5h)"
            },
            {
              "status": "affected",
              "version": "15.3(2b)"
            },
            {
              "status": "affected",
              "version": "16.0(3g)"
            },
            {
              "status": "affected",
              "version": "16.0(5j)"
            },
            {
              "status": "affected",
              "version": "15.3(2c)"
            },
            {
              "status": "affected",
              "version": "16.0(6c)"
            },
            {
              "status": "affected",
              "version": "15.3(2d)"
            },
            {
              "status": "affected",
              "version": "16.1(1f)"
            },
            {
              "status": "affected",
              "version": "16.0(7e)"
            },
            {
              "status": "affected",
              "version": "16.0(8e)"
            },
            {
              "status": "affected",
              "version": "15.3(2e)"
            },
            {
              "status": "affected",
              "version": "16.0(8f)"
            },
            {
              "status": "affected",
              "version": "16.1(2f)"
            },
            {
              "status": "affected",
              "version": "16.1(2g)"
            },
            {
              "status": "affected",
              "version": "15.3(2f)"
            },
            {
              "status": "affected",
              "version": "16.0(9c)"
            },
            {
              "status": "affected",
              "version": "16.1(3f)"
            },
            {
              "status": "affected",
              "version": "16.0(9d)"
            },
            {
              "status": "affected",
              "version": "16.0(6h)"
            },
            {
              "status": "affected",
              "version": "16.0(8h)"
            },
            {
              "status": "affected",
              "version": "16.1(3g)"
            },
            {
              "status": "affected",
              "version": "16.0(9e)"
            },
            {
              "status": "affected",
              "version": "16.1(4h)"
            },
            {
              "status": "affected",
              "version": "16.1(5e)"
            },
            {
              "status": "affected",
              "version": "16.2(1g)"
            },
            {
              "status": "affected",
              "version": "16.0(9f)"
            },
            {
              "status": "affected",
              "version": "16.2(2e)"
            }
          ]
        },
        {
          "defaultStatus": "unknown",
          "product": "Cisco Unified Computing System (Managed)",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "4.0(1a)"
            },
            {
              "status": "affected",
              "version": "4.1(1d)"
            },
            {
              "status": "affected",
              "version": "4.0(4f)"
            },
            {
              "status": "affected",
              "version": "4.0(4c)"
            },
            {
              "status": "affected",
              "version": "4.0(2b)"
            },
            {
              "status": "affected",
              "version": "4.1(2a)"
            },
            {
              "status": "affected",
              "version": "4.0(4a)"
            },
            {
              "status": "affected",
              "version": "4.0(4e)"
            },
            {
              "status": "affected",
              "version": "4.0(4h)"
            },
            {
              "status": "affected",
              "version": "4.0(2a)"
            },
            {
              "status": "affected",
              "version": "4.1(1c)"
            },
            {
              "status": "affected",
              "version": "4.0(1b)"
            },
            {
              "status": "affected",
              "version": "4.1(1e)"
            },
            {
              "status": "affected",
              "version": "4.0(4d)"
            },
            {
              "status": "affected",
              "version": "4.0(4b)"
            },
            {
              "status": "affected",
              "version": "4.0(2e)"
            },
            {
              "status": "affected",
              "version": "4.1(1a)"
            },
            {
              "status": "affected",
              "version": "4.0(4g)"
            },
            {
              "status": "affected",
              "version": "4.0(1d)"
            },
            {
              "status": "affected",
              "version": "4.0(1c)"
            },
            {
              "status": "affected",
              "version": "4.0(4i)"
            },
            {
              "status": "affected",
              "version": "4.0(2d)"
            },
            {
              "status": "affected",
              "version": "4.1(1b)"
            },
            {
              "status": "affected",
              "version": "4.1(2b)"
            },
            {
              "status": "affected",
              "version": "4.0(4k)"
            },
            {
              "status": "affected",
              "version": "4.1(3a)"
            },
            {
              "status": "affected",
              "version": "4.1(3b)"
            },
            {
              "status": "affected",
              "version": "4.1(2c)"
            },
            {
              "status": "affected",
              "version": "4.0(4l)"
            },
            {
              "status": "affected",
              "version": "4.1(4a)"
            },
            {
              "status": "affected",
              "version": "4.1(3c)"
            },
            {
              "status": "affected",
              "version": "4.1(3d)"
            },
            {
              "status": "affected",
              "version": "4.2(1c)"
            },
            {
              "status": "affected",
              "version": "4.2(1d)"
            },
            {
              "status": "affected",
              "version": "4.0(4m)"
            },
            {
              "status": "affected",
              "version": "4.1(3e)"
            },
            {
              "status": "affected",
              "version": "4.2(1f)"
            },
            {
              "status": "affected",
              "version": "4.1(3f)"
            },
            {
              "status": "affected",
              "version": "4.2(1i)"
            },
            {
              "status": "affected",
              "version": "4.1(3h)"
            },
            {
              "status": "affected",
              "version": "4.2(1k)"
            },
            {
              "status": "affected",
              "version": "4.2(1l)"
            },
            {
              "status": "affected",
              "version": "4.0(4n)"
            },
            {
              "status": "affected",
              "version": "4.2(1m)"
            },
            {
              "status": "affected",
              "version": "4.1(3i)"
            },
            {
              "status": "affected",
              "version": "4.2(2a)"
            },
            {
              "status": "affected",
              "version": "4.2(1n)"
            },
            {
              "status": "affected",
              "version": "4.1(3j)"
            },
            {
              "status": "affected",
              "version": "4.2(2c)"
            },
            {
              "status": "affected",
              "version": "4.2(2d)"
            },
            {
              "status": "affected",
              "version": "4.2(3b)"
            },
            {
              "status": "affected",
              "version": "4.1(3k)"
            },
            {
              "status": "affected",
              "version": "4.0(4o)"
            },
            {
              "status": "affected",
              "version": "4.2(2e)"
            },
            {
              "status": "affected",
              "version": "4.2(3d)"
            },
            {
              "status": "affected",
              "version": "4.2(3e)"
            },
            {
              "status": "affected",
              "version": "4.2(3g)"
            },
            {
              "status": "affected",
              "version": "4.1(3l)"
            },
            {
              "status": "affected",
              "version": "4.3(2b)"
            },
            {
              "status": "affected",
              "version": "4.2(3h)"
            },
            {
              "status": "affected",
              "version": "4.2(3i)"
            },
            {
              "status": "affected",
              "version": "4.3(2c)"
            },
            {
              "status": "affected",
              "version": "4.1(3m)"
            },
            {
              "status": "affected",
              "version": "4.3(2e)"
            },
            {
              "status": "affected",
              "version": "4.3(3a)"
            },
            {
              "status": "affected",
              "version": "4.2(3j)"
            },
            {
              "status": "affected",
              "version": "4.3(3c)"
            },
            {
              "status": "affected",
              "version": "4.3(4a)"
            },
            {
              "status": "affected",
              "version": "4.2(3k)"
            },
            {
              "status": "affected",
              "version": "4.3(4b)"
            },
            {
              "status": "affected",
              "version": "4.3(4c)"
            },
            {
              "status": "affected",
              "version": "4.2(3l)"
            },
            {
              "status": "affected",
              "version": "4.3(4d)"
            },
            {
              "status": "affected",
              "version": "4.3(2f)"
            },
            {
              "status": "affected",
              "version": "4.2(3m)"
            },
            {
              "status": "affected",
              "version": "4.3(5a)"
            },
            {
              "status": "affected",
              "version": "4.3(4e)"
            },
            {
              "status": "affected",
              "version": "4.1(3n)"
            },
            {
              "status": "affected",
              "version": "4.3(4f)"
            },
            {
              "status": "affected",
              "version": "4.2(3n)"
            },
            {
              "status": "affected",
              "version": "4.3(5c)"
            },
            {
              "status": "affected",
              "version": "4.2(3o)"
            },
            {
              "status": "affected",
              "version": "4.3(5d)"
            },
            {
              "status": "affected",
              "version": "4.3(6a)"
            },
            {
              "status": "affected",
              "version": "4.3(6b)"
            },
            {
              "status": "affected",
              "version": "4.3(5e)"
            },
            {
              "status": "affected",
              "version": "4.3(6c)"
            },
            {
              "status": "affected",
              "version": "4.2(3p)"
            },
            {
              "status": "affected",
              "version": "6.0(1b)"
            },
            {
              "status": "affected",
              "version": "6.0(1c)"
            },
            {
              "status": "affected",
              "version": "4.3(6d)"
            },
            {
              "status": "affected",
              "version": "6.0(1d)"
            },
            {
              "status": "affected",
              "version": "6.0(1e)"
            },
            {
              "status": "affected",
              "version": "4.3(6e)"
            },
            {
              "status": "affected",
              "version": "6.0(1f)"
            },
            {
              "status": "affected",
              "version": "4.3(6f)"
            },
            {
              "status": "affected",
              "version": "6.0(2b)"
            },
            {
              "status": "affected",
              "version": "6.0(1h)"
            },
            {
              "status": "affected",
              "version": "4.2(3r)"
            },
            {
              "status": "affected",
              "version": "6.0(2c)"
            },
            {
              "status": "affected",
              "version": "4.3(6g)"
            },
            {
              "status": "affected",
              "version": "6.0(2d)"
            },
            {
              "status": "affected",
              "version": "4.3(6h)"
            },
            {
              "status": "affected",
              "version": "4.2(3s)"
            },
            {
              "status": "affected",
              "version": "4.3(6i)"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "As part of Cisco\u0027s ongoing commitment to proactive security and product quality, the Cisco NX-OS engineering team has conducted a comprehensive internal security review. This review resulted in a software hardening release that addresses multiple internally discovered vulnerabilities.\r\n\r\nThe vulnerabilities tracked by CVE-2026-76453 are related to improper neutralization issues that are grouped under the Common Weakness Enumeration (CWE) CWE-707."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-707",
              "description": "Improper Neutralization",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-07T16:12:24.554Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-hardening-nxosw1-cWzSbtR",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-hardening-nxosw1-cWzSbtR"
        }
      ],
      "source": {
        "advisory": "cisco-sa-hardening-nxosw1-cWzSbtR",
        "defects": [
          "CSCwu12668"
        ],
        "discovery": "INTERNAL"
      },
      "title": "Cisco NX-OS Software Security Hardening Release: October 2026 - Improper Neutralization Vulnerabilities"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-76453",
    "datePublished": "2026-10-07T16:12:24.554Z",
    "dateReserved": "2026-08-19T12:02:03.636Z",
    "dateUpdated": "2026-10-08T13:00:07.473Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted