HarborGuard / CVE
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HIGHCVE-2026-20846Published Modified CNA microsoft

CVE-2026-20846: GDI+ Denial of Service Vulnerability

Buffer over-read in Windows GDI+ allows an unauthorized attacker to deny service over a network.

Metrics

CVSS v3.1
7.5
Severity
HIGH
Fixed in
6.2.9200.25923
Affected Products
23

Fix available

6.2.9200.259236.3.9600.2302210.0.14393.886810.0.17763.838910.0.19044.693710.0.19045.693710.0.20348.477310.0.22631.664910.0.25398.214910.0.26100.784010.0.26100.3237010.0.26200.784010.0.28000.157516.0.19822.20000
Patch commits
Affected packages
  • Microsoft / Microsoft Office for Android
    < 16.0.19822.20000 (from 16.0.1)
  • Microsoft / Windows 10 Version 1607
    < 10.0.14393.8868 (from 10.0.14393.0)
  • Microsoft / Windows 10 Version 1809
    < 10.0.17763.8389 (from 10.0.17763.0)
  • Microsoft / Windows 10 Version 21H2
    < 10.0.19044.6937 (from 10.0.19044.0)
  • Microsoft / Windows 10 Version 22H2
    < 10.0.19045.6937 (from 10.0.19045.0)
  • Microsoft / Windows 11 version 22H3
    < 10.0.22631.6649 (from 10.0.22631.0)
  • Microsoft / Windows 11 Version 23H2
    < 10.0.22631.6649 (from 10.0.22631.0)
  • Microsoft / Windows 11 Version 24H2
    < 10.0.26100.7840 (from 10.0.26100.0)
  • Microsoft / Windows 11 Version 25H2
    < 10.0.26200.7840 (from 10.0.26200.0)
  • Microsoft / Windows 11 version 26H1
    < 10.0.28000.1575 (from 10.0.28000.0)
  • Microsoft / Windows 11 Version 26H1
    < 10.0.28000.1575 (from 10.0.28000.0)
  • Microsoft / Windows Server 2012
    < 6.2.9200.25923 (from 6.2.9200.0)
  • Microsoft / Windows Server 2012 (Server Core installation)
    < 6.2.9200.25923 (from 6.2.9200.0)
  • Microsoft / Windows Server 2012 R2
    < 6.3.9600.23022 (from 6.3.9600.0)
  • Microsoft / Windows Server 2012 R2 (Server Core installation)
    < 6.3.9600.23022 (from 6.3.9600.0)
  • Microsoft / Windows Server 2016
    < 10.0.14393.8868 (from 10.0.14393.0)
  • Microsoft / Windows Server 2016 (Server Core installation)
    < 10.0.14393.8868 (from 10.0.14393.0)
  • Microsoft / Windows Server 2019
    < 10.0.17763.8389 (from 10.0.17763.0)
  • Microsoft / Windows Server 2019 (Server Core installation)
    < 10.0.17763.8389 (from 10.0.17763.0)
  • Microsoft / Windows Server 2022
    < 10.0.20348.4773 (from 10.0.20348.0)
  • Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)
    < 10.0.25398.2149 (from 10.0.25398.0)
  • Microsoft / Windows Server 2025
    < 10.0.26100.32370 (from 10.0.26100.0)
  • Microsoft / Windows Server 2025 (Server Core installation)
    < 10.0.26100.32370 (from 10.0.26100.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C
References