Vulnerability-Lookup

BDU:2021-01123 (CVE-2021-26855)

Vulnerability from fstec – Published: 2021-03-03 – Updated: 2026-08-14 – View on bdu.fstec.ru Exploit publicly available Yes Fixed

Title

Уязвимость почтового сервера Microsoft Exchange Server, связанная с недостаточной проверкой поступающих запросов, позволяющая нарушителю осуществить SSRF-атаку

Summary

Уязвимость почтового сервера Microsoft Exchange Server связана с недостаточной проверкой поступающих запросов. Эксплуатация уязвимости может позволить нарушителю, действующему удалённо, осуществить SSRF-атаку с помощью специально сформированных HTTPS-запросов (содержащих вредоносные файлы cookie X-AnonResource-Backend и искаженные файлы cookie X-BEResource)

Severity

10.0 (High) CVSS 2.0


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

9.8 (Critical) CVSS 3.0


                      
                        CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Spoofing

Incidents

Yes

Remediation

Software update

CWE

CWE-918 - Серверная фальсификация запросов

Aliases

CVE-2021-26855

References

6 references

URL
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26855
https://nvd.nist.gov/vuln/detail/CVE-2021-26855
https://www.cybersecurity-help.cz/vdb/SB2021030301
https://msrc-blog.microsoft.com/2021/03/05/microsoft-exchange-server-vulnerabil…
http://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remot…
http://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthentic…

Impacted products

1 product from 1 vendor

Vendors

Microsoft Corp

Products

Microsoft Exchange Server

Versions

2016 Cumulative Update 8 (Microsoft Exchange Server), 2016 Cumulative Update 9 (Microsoft Exchange Server), 2013 Cumulative Update 21 (Microsoft Exchange Server), 2016 Cumulative Update 10 (Microsoft Exchange Server), 2016 Cumulative Update 11 (Microsoft Exchange Server), 2019 (Microsoft Exchange Server), 2013 Cumulative Update 22 (Microsoft Exchange Server), 2016 Cumulative Update 12 (Microsoft Exchange Server), 2019 Cumulative Update 1 (Microsoft Exchange Server), 2016 Cumulative Update 19 (Microsoft Exchange Server), 2013 Cumulative Update 23 (Microsoft Exchange Server), 2016 Cumulative Update 13 (Microsoft Exchange Server), 2019 Cumulative Update 2 (Microsoft Exchange Server), 2016 Cumulative Update 14 (Microsoft Exchange Server), 2019 Cumulative Update 3 (Microsoft Exchange Server), 2016 Cumulative Update 16 (Microsoft Exchange Server), 2016 Cumulative Update 17 (Microsoft Exchange Server), 2019 Cumulative Update 5 (Microsoft Exchange Server), 2019 Cumulative Update 6 (Microsoft Exchange Server), 2016 Cumulative Update 18 (Microsoft Exchange Server), 2019 Cumulative Update 7 (Microsoft Exchange Server), 2019 Cumulative Update 8 (Microsoft Exchange Server), 2016 Cumulative Update 15 (Microsoft Exchange Server), 2019 Cumulative Update 4 (Microsoft Exchange Server)

Product types

Application software

Mitigations

Использование рекомендаций: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26855

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:N/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": "Microsoft Corp",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "2016 Cumulative Update 8 (Microsoft Exchange Server), 2016 Cumulative Update 9 (Microsoft Exchange Server), 2013 Cumulative Update 21 (Microsoft Exchange Server), 2016 Cumulative Update 10 (Microsoft Exchange Server), 2016 Cumulative Update 11 (Microsoft Exchange Server), 2019 (Microsoft Exchange Server), 2013 Cumulative Update 22 (Microsoft Exchange Server), 2016 Cumulative Update 12 (Microsoft Exchange Server), 2019 Cumulative Update 1 (Microsoft Exchange Server), 2016 Cumulative Update 19 (Microsoft Exchange Server), 2013 Cumulative Update 23 (Microsoft Exchange Server), 2016 Cumulative Update 13 (Microsoft Exchange Server), 2019 Cumulative Update 2 (Microsoft Exchange Server), 2016 Cumulative Update 14 (Microsoft Exchange Server), 2019 Cumulative Update 3 (Microsoft Exchange Server), 2016 Cumulative Update 16 (Microsoft Exchange Server), 2016 Cumulative Update 17 (Microsoft Exchange Server), 2019 Cumulative Update 5 (Microsoft Exchange Server), 2019 Cumulative Update 6 (Microsoft Exchange Server), 2016 Cumulative Update 18 (Microsoft Exchange Server), 2019 Cumulative Update 7 (Microsoft Exchange Server), 2019 Cumulative Update 8 (Microsoft Exchange Server), 2016 Cumulative Update 15 (Microsoft Exchange Server), 2019 Cumulative Update 4 (Microsoft Exchange Server)",
  "\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://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26855",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "02.03.2021",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "14.08.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "03.03.2021",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2021-01123",
  "\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-2021-26855",
  "\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": "Microsoft Exchange Server",
  "\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": null,
  "\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 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Microsoft Exchange Server, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u044e\u0449\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0438\u0442\u044c SSRF-\u0430\u0442\u0430\u043a\u0443",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0421\u0435\u0440\u0432\u0435\u0440\u043d\u0430\u044f \u0444\u0430\u043b\u044c\u0441\u0438\u0444\u0438\u043a\u0430\u0446\u0438\u044f \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 (CWE-918)",
  "\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 \u043f\u043e\u0447\u0442\u043e\u0432\u043e\u0433\u043e \u0441\u0435\u0440\u0432\u0435\u0440\u0430 Microsoft Exchange Server \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e\u0439 \u043f\u0440\u043e\u0432\u0435\u0440\u043a\u043e\u0439 \u043f\u043e\u0441\u0442\u0443\u043f\u0430\u044e\u0449\u0438\u0445 \u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432. \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\u0451\u043d\u043d\u043e, \u043e\u0441\u0443\u0449\u0435\u0441\u0442\u0432\u0438\u0442\u044c SSRF-\u0430\u0442\u0430\u043a\u0443 \u0441 \u043f\u043e\u043c\u043e\u0449\u044c\u044e \u0441\u043f\u0435\u0446\u0438\u0430\u043b\u044c\u043d\u043e \u0441\u0444\u043e\u0440\u043c\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0445 HTTPS-\u0437\u0430\u043f\u0440\u043e\u0441\u043e\u0432 (\u0441\u043e\u0434\u0435\u0440\u0436\u0430\u0449\u0438\u0445 \u0432\u0440\u0435\u0434\u043e\u043d\u043e\u0441\u043d\u044b\u0435 \u0444\u0430\u0439\u043b\u044b cookie X-AnonResource-Backend \u0438 \u0438\u0441\u043a\u0430\u0436\u0435\u043d\u043d\u044b\u0435 \u0444\u0430\u0439\u043b\u044b cookie X-BEResource)",
  "\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",
  "\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://msrc.microsoft.com/update-guide/vulnerability/CVE-2021-26855\nhttps://nvd.nist.gov/vuln/detail/CVE-2021-26855\nhttps://www.cybersecurity-help.cz/vdb/SB2021030301\nhttps://msrc-blog.microsoft.com/2021/03/05/microsoft-exchange-server-vulnerabilities-mitigations-march-2021/\nhttp://packetstormsecurity.com/files/161938/Microsoft-Exchange-ProxyLogon-Remote-Code-Execution.html\nhttp://packetstormsecurity.com/files/162610/Microsoft-Exchange-2019-Unauthenticated-Email-Download.html",
  "\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": "\u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-918",
  "\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": "\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\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 10)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\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 3.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,8)"
}

CVE-2021-26855 (GCVE-0-2021-26855)

Vulnerability from cvelistv5 – Published: 2021-03-02 23:55 – Updated: 2026-08-19 16:30

Title

Microsoft Exchange Server Remote Code Execution Vulnerability

Summary

Microsoft Exchange Server Remote Code Execution Vulnerability

Severity

9.1 (Critical)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N/E:F/RL:O/RC:C

SSVC

Exploitation: active Automatable: yes Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2021-03-01 00:00 UTC

CWE

Remote Code Execution
CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

microsoft mitre root

References

7 references

URL	Tags
https://msrc.microsoft.com/update-guide/vulnerabi…	vendor-advisorypatch
https://portal.msrc.microsoft.com/en-US/security-…	x_refsource_MISCx_transferred
http://packetstormsecurity.com/files/161846/Micro…	x_refsource_MISCx_transferred
http://packetstormsecurity.com/files/161938/Micro…	x_refsource_MISCx_transferred
http://packetstormsecurity.com/files/162610/Micro…	x_refsource_MISCx_transferred
http://packetstormsecurity.com/files/162736/Micro…	x_refsource_MISCx_transferred
https://www.cisa.gov/known-exploited-vulnerabilit…	government-resource

Impacted products

24 products

Vendor	Product	Version
Microsoft	Microsoft Exchange Server 2013 Cumulative Update 21	Affected: 15.00.0 , < 15.00.1395.012 (custom)
Microsoft	Microsoft Exchange Server 2013 Cumulative Update 22	Affected: 15.00.0 , < 15.00.1473.006 (custom)
Microsoft	Microsoft Exchange Server 2013 Cumulative Update 23	Affected: 15.00.0 , < 15.00.1497.012 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 10	Affected: 15.01.0 , < 15.01.1531.012 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 11	Affected: 15.01.0 , < 15.01.1591.018 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 12	Affected: 15.01.0 , < 15.01.1713.010 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 13	Affected: 15.01.0 , < 15.01.1779.008 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 14	Affected: 15.01.0 , < 15.01.1847.012 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 15	Affected: 15.01.0 , < 15.01.1913.012 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 16	Affected: 15.01.0 , < 15.01.1979.008 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 17	Affected: 15.01.0 , < 15.01.2044.013 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 18	Affected: 15.01.0 , < 15.01.2106.013 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 19	Affected: 15.01.0 , < 15.01.2176.009 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 8	Affected: 15.01.0 , < 15.01.1415.010 (custom)
Microsoft	Microsoft Exchange Server 2016 Cumulative Update 9	Affected: 15.01.0 , < 15.01.1466.016 (custom)
Microsoft	Microsoft Exchange Server 2019	Affected: 15.02.0 , < 15.02.0221.018 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 1	Affected: 15.02.0 , < 15.01.1979.006 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 2	Affected: 15.02.0 , < 15.02.0397.011 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 3	Affected: 15.02.0 , < 15.02.0464.015 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 4	Affected: 15.02.0 , < 15.02.0659.012 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 5	Affected: 15.02.0 , < 15.02.0595.008 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 6	Affected: 15.02.0 , < 15.02.0529.013 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 7	Affected: 15.02.0 , < 15.02.0721.013 (custom)
Microsoft	Microsoft Exchange Server 2019 Cumulative Update 8	Affected: 15.02.0 , < 15.02.0792.010 (custom)

Date Public

2021-03-02 16:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T20:33:40.999Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
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          },
          {
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          },
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        ],
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}

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.