Riskcovery

CVE-2026-21513

MSHTML Framework Security Feature Bypass Vulnerability

State
Published
Severity
8.8 High
Published
Feb 10, 2026
Updated
Aug 19, 2026
Reserved
Dec 30, 2025

Read the record on cve.org

Description

Protection mechanism failure in MSHTML Framework allows an unauthorized attacker to bypass a security feature over a network.

Scores

CVSSScoreVectorSource
3.18.8 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:Cmicrosoft

Weaknesses

  • CWE-693 Protection Mechanism Failure

Affected Products

ProductVersions
Windows 10 Version 1607Microsoft
  • 10.0.14393.0 to before 10.0.14393.8868Affected
Windows 10 Version 1809Microsoft
  • 10.0.17763.0 to before 10.0.17763.8389Affected
Windows 10 Version 21H2Microsoft
  • 10.0.19044.0 to before 10.0.19044.6937Affected
Windows 10 Version 22H2Microsoft
  • 10.0.19045.0 to before 10.0.19045.6937Affected
Windows 11 version 22H3Microsoft
  • 10.0.22631.0 to before 10.0.22631.6649Affected
Windows 11 Version 23H2Microsoft
  • 10.0.22631.0 to before 10.0.22631.6649Affected
Windows 11 Version 24H2Microsoft
  • 10.0.26100.0 to before 10.0.26100.7840Affected
Windows 11 Version 25H2Microsoft
  • 10.0.26200.0 to before 10.0.26200.7840Affected
Windows 11 version 26H1Microsoft
  • 10.0.28000.0 to before 10.0.28000.1575Affected
Windows 11 Version 26H1Microsoft
  • 10.0.28000.0 to before 10.0.28000.1575Affected
Windows Server 2012Microsoft
  • 6.2.9200.0 to before 6.2.9200.25923Affected
Windows Server 2012 (Server Core installation)Microsoft
  • 6.2.9200.0 to before 6.2.9200.25923Affected
Windows Server 2012 R2Microsoft
  • 6.3.9600.0 to before 6.3.9600.23022Affected
Windows Server 2012 R2 (Server Core installation)Microsoft
  • 6.3.9600.0 to before 6.3.9600.23022Affected
Windows Server 2016Microsoft
  • 10.0.14393.0 to before 10.0.14393.8868Affected
Windows Server 2016 (Server Core installation)Microsoft
  • 10.0.14393.0 to before 10.0.14393.8868Affected
Windows Server 2019Microsoft
  • 10.0.17763.0 to before 10.0.17763.8389Affected
Windows Server 2019 (Server Core installation)Microsoft
  • 10.0.17763.0 to before 10.0.17763.8389Affected
Windows Server 2022Microsoft
  • 10.0.20348.0 to before 10.0.20348.4773Affected
Windows Server 2022, 23H2 Edition (Server Core installation)Microsoft
  • 10.0.25398.0 to before 10.0.25398.2149Affected
Windows Server 2025Microsoft
  • 10.0.26100.0 to before 10.0.26100.32370Affected
Windows Server 2025 (Server Core installation)Microsoft
  • 10.0.26100.0 to before 10.0.26100.32370Affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.