Vulnerability-Lookup

BDU:2025-11353 (CVE-2025-20248)

Vulnerability from fstec – Published: 2025-09-19 – Updated: 2025-09-19 – View on bdu.fstec.ru Fixed

Title

Уязвимость установщика операционной системы Cisco IOS XR, позволяющая нарушителю обойти существующие ограничения безопасности и выполнить произвольный код

Summary

Уязвимость установщика операционной системы Cisco IOS XR связана с ошибками проверки криптографической подписи. Эксплуатация уязвимости может позволить нарушителю обойти существующие ограничения безопасности и выполнить произвольный код

Severity

6.2 (Medium) CVSS 2.0


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

6.0 (Medium) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Spoofing

Incidents

Being clarified

Remediation

Software update

CWE

CWE-347 - Некорректная проверка криптографической подписи

Aliases

CVE-2025-20248, CISCO-SA-XRSIG-UY4ZRUCG

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

Cisco IOS XR

Versions

до 7.10 включительно (Cisco IOS XR), 7.11 (Cisco IOS XR), до 24.2.21 (Cisco IOS XR), 24.3 (Cisco IOS XR), до 24.4.2 (Cisco IOS XR)

Product types

Operating system

Platforms

Cisco Systems, Inc. Cisco IOS XR до 7.10 включительно NCS 5700 Series Routers, Inc. Cisco IOS XR до 7.10 включительно ASR 9000 Series Aggregation Services Routers (64-bit), Inc. Cisco IOS XR 7.11 ASR 9000 Series Aggregation Services Routers (64-bit), Inc. Cisco IOS XR до 24.2.21 ASR 9000 Series Aggregation Services Routers (64-bit), Inc. Cisco IOS XR 24.3 ASR 9000 Series Aggregation Services Routers (64-bit), Inc. Cisco IOS XR до 24.4.2 ASR 9000 Series Aggregation Services Routers (64-bit), Inc. Cisco IOS XR до 7.10 включительно IOS XR White box (IOSXRWBD), Inc. Cisco IOS XR 7.11 IOS XR White box (IOSXRWBD), Inc. Cisco IOS XR до 24.2.21 IOS XR White box (IOSXRWBD), Inc. Cisco IOS XR 24.3 IOS XR White box (IOSXRWBD), Inc. Cisco IOS XR до 24.4.2 IOS XR White box (IOSXRWBD), Inc. Cisco IOS XR до 7.10 включительно IOS XRv 9000 Router, Inc. Cisco IOS XR 7.11 IOS XRv 9000 Router, Inc. Cisco IOS XR до 24.2.21 IOS XRv 9000 Router, Inc. Cisco IOS XR 24.3 IOS XRv 9000 Router, Inc. Cisco IOS XR до 24.4.2 IOS XRv 9000 Router, Inc. Cisco IOS XR до 7.10 включительно Network Convergence System (NCS) 540 Series Routers, Inc. Cisco IOS XR 7.11 Network Convergence System (NCS) 540 Series Routers, Inc. Cisco IOS XR до 24.2.21 Network Convergence System (NCS) 540 Series Routers, Inc. Cisco IOS XR 24.3 Network Convergence System (NCS) 540 Series Routers, Inc. Cisco IOS XR до 24.4.2 Network Convergence System (NCS) 540 Series Routers, Inc. Cisco IOS XR до 7.10 включительно NCS 560 Series Routers, Inc. Cisco IOS XR 7.11 NCS 560 Series Routers, Inc. Cisco IOS XR до 24.2.21 NCS 560 Series Routers, Inc. Cisco IOS XR 24.3 NCS 560 Series Routers, Inc. Cisco IOS XR до 24.4.2 NCS 560 Series Routers, Inc. Cisco IOS XR до 7.10 включительно NCS 1000 Series, Inc. Cisco IOS XR 7.11 NCS 1000 Series, Inc. Cisco IOS XR до 24.2.21 NCS 1000 Series, Inc. Cisco IOS XR 24.3 NCS 1000 Series, Inc. Cisco IOS XR до 24.4.2 NCS 1000 Series, Inc. Cisco IOS XR до 7.10 включительно NCS 1001 Series, Inc. Cisco IOS XR 7.11 NCS 1001 Series, Inc. Cisco IOS XR до 24.2.21 NCS 1001 Series, Inc. Cisco IOS XR 24.3 NCS 1001 Series, Inc. Cisco IOS XR до 24.4.2 NCS 1001 Series, Inc. Cisco IOS XR до 7.10 включительно NCS 1002 Series, Inc. Cisco IOS XR 7.11 NCS 1002 Series, Inc. Cisco IOS XR до 24.2.21 NCS 1002 Series, Inc. Cisco IOS XR 24.3 NCS 1002 Series, Inc. Cisco IOS XR до 24.4.2 NCS 1002 Series, Inc. Cisco IOS XR до 7.10 включительно NCS 1004 Series, Inc. Cisco IOS XR 7.11 NCS 1004 Series, Inc. Cisco IOS XR до 24.2.21 NCS 1004 Series, Inc. Cisco IOS XR 24.3 NCS 1004 Series, Inc. Cisco IOS XR до 24.4.2 NCS 1004 Series, Inc. Cisco IOS XR до 7.10 включительно NCS 5000 Series Routers, Inc. Cisco IOS XR 7.11 NCS 5000 Series Routers, Inc. Cisco IOS XR до 24.2.21 NCS 5000 Series Routers, Inc. Cisco IOS XR 24.3 NCS 5000 Series Routers, Inc. Cisco IOS XR до 24.4.2 NCS 5000 Series Routers, Inc. Cisco IOS XR до 7.10 включительно NCS 5500 Series Routers, Inc. Cisco IOS XR 7.11 NCS 5500 Series Routers, Inc. Cisco IOS XR до 24.2.21 NCS 5500 Series Routers, Inc. Cisco IOS XR 24.3 NCS 5500 Series Routers, Inc. Cisco IOS XR до 24.4.2 NCS 5500 Series Routers, Inc. Cisco IOS XR до 7.10 включительно NCS 6000 Series Routers, Inc. Cisco IOS XR 7.11 NCS 6000 Series Routers, Inc. Cisco IOS XR до 24.2.21 NCS 6000 Series Routers, Inc. Cisco IOS XR 24.3 NCS 6000 Series Routers, Inc. Cisco IOS XR до 24.4.2 NCS 6000 Series Routers, Inc. Cisco IOS XR 7.11 NCS 5700 Series Routers, Inc. Cisco IOS XR до 24.2.21 NCS 5700 Series Routers, Inc. Cisco IOS XR 24.3 NCS 5700 Series Routers, Inc. Cisco IOS XR до 24.4.2 NCS 5700 Series Routers

Mitigations

Использование рекомендаций производителя: https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG

JSON

To clipboard

{
  "CVSS 2.0": "AV:L/AC:L/Au:S/C:C/I:C/A:N",
  "CVSS 3.0": "AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
  "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 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Cisco IOS XR), 7.11 (Cisco IOS XR), \u0434\u043e 24.2.21 (Cisco IOS XR), 24.3 (Cisco IOS XR), \u0434\u043e 24.4.2 (Cisco IOS XR)",
  "\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 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "10.09.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "19.09.2025",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "19.09.2025",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2025-11353",
  "\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-2025-20248, CISCO-SA-xrsig-UY4zRUCG",
  "\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 \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Cisco IOS XR",
  "\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. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 5700 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e ASR 9000 Series Aggregation Services Routers (64-bit), Cisco Systems, Inc. Cisco IOS XR 7.11 ASR 9000 Series Aggregation Services Routers (64-bit), Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 ASR 9000 Series Aggregation Services Routers (64-bit), Cisco Systems, Inc. Cisco IOS XR 24.3 ASR 9000 Series Aggregation Services Routers (64-bit), Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 ASR 9000 Series Aggregation Services Routers (64-bit), Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e IOS XR White box (IOSXRWBD), Cisco Systems, Inc. Cisco IOS XR 7.11 IOS XR White box (IOSXRWBD), Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 IOS XR White box (IOSXRWBD), Cisco Systems, Inc. Cisco IOS XR 24.3 IOS XR White box (IOSXRWBD), Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 IOS XR White box (IOSXRWBD), Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e IOS XRv 9000 Router, Cisco Systems, Inc. Cisco IOS XR 7.11 IOS XRv 9000 Router, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 IOS XRv 9000 Router, Cisco Systems, Inc. Cisco IOS XR 24.3 IOS XRv 9000 Router, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 IOS XRv 9000 Router, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e Network Convergence System (NCS) 540 Series Routers, Cisco Systems, Inc. Cisco IOS XR 7.11 Network Convergence System (NCS) 540 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 Network Convergence System (NCS) 540 Series Routers, Cisco Systems, Inc. Cisco IOS XR 24.3 Network Convergence System (NCS) 540 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 Network Convergence System (NCS) 540 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 560 Series Routers, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 560 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 560 Series Routers, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 560 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 560 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 1000 Series, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 1000 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 1000 Series, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 1000 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 1000 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 1001 Series, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 1001 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 1001 Series, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 1001 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 1001 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 1002 Series, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 1002 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 1002 Series, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 1002 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 1002 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 1004 Series, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 1004 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 1004 Series, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 1004 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 1004 Series, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 5000 Series Routers, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 5000 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 5000 Series Routers, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 5000 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 5000 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 5500 Series Routers, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 5500 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 5500 Series Routers, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 5500 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 5500 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 7.10 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e NCS 6000 Series Routers, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 6000 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 6000 Series Routers, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 6000 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 6000 Series Routers, Cisco Systems, Inc. Cisco IOS XR 7.11 NCS 5700 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.2.21 NCS 5700 Series Routers, Cisco Systems, Inc. Cisco IOS XR 24.3 NCS 5700 Series Routers, Cisco Systems, Inc. Cisco IOS XR \u0434\u043e 24.4.2 NCS 5700 Series Routers",
  "\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 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0449\u0438\u043a\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco IOS XR, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0431\u043e\u0439\u0442\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\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\u043a\u043e\u0440\u0440\u0435\u043a\u0442\u043d\u0430\u044f \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0430 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438 (CWE-347)",
  "\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 \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0449\u0438\u043a\u0430 \u043e\u043f\u0435\u0440\u0430\u0446\u0438\u043e\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b Cisco IOS XR \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043e\u0448\u0438\u0431\u043a\u0430\u043c\u0438 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u0438 \u043a\u0440\u0438\u043f\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u043f\u043e\u0434\u043f\u0438\u0441\u0438. \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 \u043e\u0431\u043e\u0439\u0442\u0438 \u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u044e\u0449\u0438\u0435 \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u044f \u0431\u0435\u0437\u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0438 \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\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": "\u041f\u043e\u0434\u043c\u0435\u043d\u0430 \u043f\u0440\u0438 \u0432\u0437\u0430\u0438\u043c\u043e\u0434\u0435\u0439\u0441\u0442\u0432\u0438\u0438",
  "\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-xrsig-UY4zRUCG",
  "\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-347",
  "\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": "\u0421\u0440\u0435\u0434\u043d\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 6,2)\n\u0421\u0440\u0435\u0434\u043d\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 6)"
}

CISCO-SA-XRSIG-UY4ZRUCG

Vulnerability from csaf_cisco - Published: 2025-09-10 16:00 - Updated: 2025-09-10 16:00

Summary

Cisco IOS XR Software Image Verification Bypass Vulnerability

Scope

1 vulnerability in this advisory.

Open the full advisory

CVE-2025-20248 (GCVE-0-2025-20248)

Vulnerability from cvelistv5 – Published: 2025-09-10 16:06 – Updated: 2026-02-26 17:48

Title

Cisco IOS XR Software Image Verification Bypass Vulnerability

Summary

A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device. This vulnerability is due to incomplete validation of files during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process.

Severity

6 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-09-11 03:56 UTC

CWE

CWE-347 - Improper Verification of Cryptographic Signature

Assigner

cisco mitre root

References

1 reference

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

Impacted products

1 product

Vendor	Product	Version
Cisco	Cisco IOS XR Software	Affected: 6.5.3 Affected: 6.5.29 Affected: 6.5.1 Affected: 6.6.1 Affected: 6.5.2 Affected: 6.5.92 Affected: 6.5.15 Affected: 6.6.2 Affected: 7.0.1 Affected: 6.6.25 Affected: 6.5.26 Affected: 6.6.11 Affected: 6.5.25 Affected: 6.5.28 Affected: 6.5.93 Affected: 6.6.12 Affected: 6.5.90 Affected: 7.0.0 Affected: 7.1.1 Affected: 7.0.90 Affected: 6.6.3 Affected: 6.7.1 Affected: 7.0.2 Affected: 7.1.15 Affected: 7.2.0 Affected: 7.2.1 Affected: 7.1.2 Affected: 6.7.2 Affected: 7.1.25 Affected: 6.6.4 Affected: 7.3.1 Affected: 7.1.3 Affected: 6.7.3 Affected: 7.4.1 Affected: 7.2.2 Affected: 6.5.31 Affected: 6.8.1 Affected: 7.4.15 Affected: 6.5.32 Affected: 7.3.2 Affected: 7.5.1 Affected: 7.4.16 Affected: 7.3.27 Affected: 7.6.1 Affected: 7.5.2 Affected: 7.6.15 Affected: 7.3.3 Affected: 7.7.1 Affected: 6.8.2 Affected: 7.3.4 Affected: 7.4.2 Affected: 6.7.35 Affected: 6.9.1 Affected: 7.6.2 Affected: 7.8.1 Affected: 7.5.3 Affected: 7.7.2 Affected: 6.9.2 Affected: 7.9.1 Affected: 7.8.2 Affected: 7.5.4 Affected: 6.5.33 Affected: 7.8.22 Affected: 7.10.1 Affected: 7.7.21 Affected: 7.9.2 Affected: 7.3.5 Affected: 7.5.5 Affected: 7.11.1 Affected: 7.9.21 Affected: 7.10.2 Affected: 7.6.3 Affected: 24.1.1 Affected: 7.3.6 Affected: 7.11.2 Affected: 24.2.1 Affected: 24.1.2 Affected: 24.2.11 Affected: 24.3.1 Affected: 24.4.1 Affected: 24.2.2 Affected: 7.8.23 Affected: 7.11.21 Affected: 24.2.20 Affected: 24.3.2 Affected: 24.4.10 Affected: 6.5.35 Affected: 24.4.15 Affected: 6.5.351 Affected: 6.5.352

Show details on NVD website

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20248",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-11T03:56:26.903508Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-02-26T17:48:42.697Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco IOS XR Software",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "6.5.3"
            },
            {
              "status": "affected",
              "version": "6.5.29"
            },
            {
              "status": "affected",
              "version": "6.5.1"
            },
            {
              "status": "affected",
              "version": "6.6.1"
            },
            {
              "status": "affected",
              "version": "6.5.2"
            },
            {
              "status": "affected",
              "version": "6.5.92"
            },
            {
              "status": "affected",
              "version": "6.5.15"
            },
            {
              "status": "affected",
              "version": "6.6.2"
            },
            {
              "status": "affected",
              "version": "7.0.1"
            },
            {
              "status": "affected",
              "version": "6.6.25"
            },
            {
              "status": "affected",
              "version": "6.5.26"
            },
            {
              "status": "affected",
              "version": "6.6.11"
            },
            {
              "status": "affected",
              "version": "6.5.25"
            },
            {
              "status": "affected",
              "version": "6.5.28"
            },
            {
              "status": "affected",
              "version": "6.5.93"
            },
            {
              "status": "affected",
              "version": "6.6.12"
            },
            {
              "status": "affected",
              "version": "6.5.90"
            },
            {
              "status": "affected",
              "version": "7.0.0"
            },
            {
              "status": "affected",
              "version": "7.1.1"
            },
            {
              "status": "affected",
              "version": "7.0.90"
            },
            {
              "status": "affected",
              "version": "6.6.3"
            },
            {
              "status": "affected",
              "version": "6.7.1"
            },
            {
              "status": "affected",
              "version": "7.0.2"
            },
            {
              "status": "affected",
              "version": "7.1.15"
            },
            {
              "status": "affected",
              "version": "7.2.0"
            },
            {
              "status": "affected",
              "version": "7.2.1"
            },
            {
              "status": "affected",
              "version": "7.1.2"
            },
            {
              "status": "affected",
              "version": "6.7.2"
            },
            {
              "status": "affected",
              "version": "7.1.25"
            },
            {
              "status": "affected",
              "version": "6.6.4"
            },
            {
              "status": "affected",
              "version": "7.3.1"
            },
            {
              "status": "affected",
              "version": "7.1.3"
            },
            {
              "status": "affected",
              "version": "6.7.3"
            },
            {
              "status": "affected",
              "version": "7.4.1"
            },
            {
              "status": "affected",
              "version": "7.2.2"
            },
            {
              "status": "affected",
              "version": "6.5.31"
            },
            {
              "status": "affected",
              "version": "6.8.1"
            },
            {
              "status": "affected",
              "version": "7.4.15"
            },
            {
              "status": "affected",
              "version": "6.5.32"
            },
            {
              "status": "affected",
              "version": "7.3.2"
            },
            {
              "status": "affected",
              "version": "7.5.1"
            },
            {
              "status": "affected",
              "version": "7.4.16"
            },
            {
              "status": "affected",
              "version": "7.3.27"
            },
            {
              "status": "affected",
              "version": "7.6.1"
            },
            {
              "status": "affected",
              "version": "7.5.2"
            },
            {
              "status": "affected",
              "version": "7.6.15"
            },
            {
              "status": "affected",
              "version": "7.3.3"
            },
            {
              "status": "affected",
              "version": "7.7.1"
            },
            {
              "status": "affected",
              "version": "6.8.2"
            },
            {
              "status": "affected",
              "version": "7.3.4"
            },
            {
              "status": "affected",
              "version": "7.4.2"
            },
            {
              "status": "affected",
              "version": "6.7.35"
            },
            {
              "status": "affected",
              "version": "6.9.1"
            },
            {
              "status": "affected",
              "version": "7.6.2"
            },
            {
              "status": "affected",
              "version": "7.8.1"
            },
            {
              "status": "affected",
              "version": "7.5.3"
            },
            {
              "status": "affected",
              "version": "7.7.2"
            },
            {
              "status": "affected",
              "version": "6.9.2"
            },
            {
              "status": "affected",
              "version": "7.9.1"
            },
            {
              "status": "affected",
              "version": "7.8.2"
            },
            {
              "status": "affected",
              "version": "7.5.4"
            },
            {
              "status": "affected",
              "version": "6.5.33"
            },
            {
              "status": "affected",
              "version": "7.8.22"
            },
            {
              "status": "affected",
              "version": "7.10.1"
            },
            {
              "status": "affected",
              "version": "7.7.21"
            },
            {
              "status": "affected",
              "version": "7.9.2"
            },
            {
              "status": "affected",
              "version": "7.3.5"
            },
            {
              "status": "affected",
              "version": "7.5.5"
            },
            {
              "status": "affected",
              "version": "7.11.1"
            },
            {
              "status": "affected",
              "version": "7.9.21"
            },
            {
              "status": "affected",
              "version": "7.10.2"
            },
            {
              "status": "affected",
              "version": "7.6.3"
            },
            {
              "status": "affected",
              "version": "24.1.1"
            },
            {
              "status": "affected",
              "version": "7.3.6"
            },
            {
              "status": "affected",
              "version": "7.11.2"
            },
            {
              "status": "affected",
              "version": "24.2.1"
            },
            {
              "status": "affected",
              "version": "24.1.2"
            },
            {
              "status": "affected",
              "version": "24.2.11"
            },
            {
              "status": "affected",
              "version": "24.3.1"
            },
            {
              "status": "affected",
              "version": "24.4.1"
            },
            {
              "status": "affected",
              "version": "24.2.2"
            },
            {
              "status": "affected",
              "version": "7.8.23"
            },
            {
              "status": "affected",
              "version": "7.11.21"
            },
            {
              "status": "affected",
              "version": "24.2.20"
            },
            {
              "status": "affected",
              "version": "24.3.2"
            },
            {
              "status": "affected",
              "version": "24.4.10"
            },
            {
              "status": "affected",
              "version": "6.5.35"
            },
            {
              "status": "affected",
              "version": "24.4.15"
            },
            {
              "status": "affected",
              "version": "6.5.351"
            },
            {
              "status": "affected",
              "version": "6.5.352"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the installation process of Cisco IOS XR Software could allow an authenticated, local attacker to bypass Cisco IOS XR Software image signature verification and load unsigned software on an affected device. To exploit this vulnerability, the attacker must have root-system privileges on the affected device.\r\n\r\nThis vulnerability is due to incomplete validation of files during the installation of an .iso file. An attacker could exploit this vulnerability by modifying contents of the .iso image and then installing and activating it on the device. A successful exploit could allow the attacker to load an unsigned file as part of the image activation process."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "LOCAL",
            "availabilityImpact": "NONE",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "HIGH",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-347",
              "description": "Improper Verification of Cryptographic Signature",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-10T16:06:49.860Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-xrsig-UY4zRUCG",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-xrsig-UY4zRUCG"
        }
      ],
      "source": {
        "advisory": "cisco-sa-xrsig-UY4zRUCG",
        "defects": [
          "CSCwm03455"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco IOS XR Software Image Verification Bypass Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2025-20248",
    "datePublished": "2025-09-10T16:06:49.860Z",
    "dateReserved": "2024-10-10T19:15:13.238Z",
    "dateUpdated": "2026-02-26T17:48:42.697Z",
    "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.

Detection rules are retrieved from Rulezet.

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

BDU:2025-11353 (CVE-2025-20248)

CISCO-SA-XRSIG-UY4ZRUCG

CVE-2025-20248 (GCVE-0-2025-20248)

Tags

Sightings

Nomenclature

Related by attack behaviour