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Fencer Vulns
high 7.3

CVE-2025-55236 json

Graphics Kernel Remote Code Execution Vulnerability

published 2025-09-09 13 mo ago modified 2026-06-17 4 mo ago also EUVD-2025-27339

cvss
7.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

Time-of-check time-of-use (toctou) race condition in Graphics Kernel allows an authorized attacker to execute code locally.

Patch / fix

  • Microsoft Windows 10 Version 1809 10.0.17763.7792
  • Microsoft Windows 10 Version 21H2 10.0.19044.6332
  • Microsoft Windows 10 Version 22H2 10.0.19045.6332
  • Microsoft Windows 11 version 22H2 10.0.22621.5909
  • Microsoft Windows 11 version 22H3 10.0.22631.5909
  • Microsoft Windows 11 Version 23H2 10.0.22631.5909
  • Microsoft Windows 11 Version 24H2 10.0.26100.6584
  • Microsoft Windows Server 2019 10.0.17763.7792
  • Microsoft Windows Server 2019 (Server Core installation) 10.0.17763.7792
  • Microsoft Windows Server 2022 10.0.20348.4171
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation) 10.0.25398.1849
  • Microsoft Windows Server 2025 10.0.26100.6584
  • Microsoft Windows Server 2025 (Server Core installation) 10.0.26100.6584

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
13 mo ago

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
CNA 3.1 7.3 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

  • Microsoft Windows 10 Version 1809
  • Microsoft Windows 10 Version 21H2
  • Microsoft Windows 10 Version 22H2
  • Microsoft Windows 11 version 22H2
  • Microsoft Windows 11 version 22H3
  • Microsoft Windows 11 Version 23H2
  • Microsoft Windows 11 Version 24H2
  • Microsoft Windows Server 2019
  • Microsoft Windows Server 2019 (Server Core installation)
  • Microsoft Windows Server 2022
  • Microsoft Windows Server 2022, 23H2 Edition (Server Core installation)
  • Microsoft Windows Server 2025
  • Microsoft Windows Server 2025 (Server Core installation)

Classification

Weakness
  • CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition
  • CWE-843 Access of Resource Using Incompatible Type

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.