HarborGuard / CVE
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HIGHCVE-2026-23669Published Modified CNA microsoft

CVE-2026-23669: RPC Runtime Library Remote Code Execution Vulnerability

Use after free in RPC Runtime allows an authorized attacker to execute code over a network.

Metrics

CVSS v3.1
8.8
Severity
HIGH
Fixed in
6.2.9200.25973
Affected Products
21

Fix available

6.2.9200.259736.3.9600.2307410.0.14393.895710.0.17763.851110.0.19044.705810.0.19045.705810.0.20348.489310.0.22631.678310.0.25398.220710.0.26100.803710.0.26100.3252210.0.26200.803710.0.28000.1719
Patch commits
Affected packages
  • Microsoft / Windows 10 Version 1607
    < 10.0.14393.8957 (from 10.0.14393.0)
  • Microsoft / Windows 10 Version 1809
    < 10.0.17763.8511 (from 10.0.17763.0)
  • Microsoft / Windows 10 Version 21H2
    < 10.0.19044.7058 (from 10.0.19044.0)
  • Microsoft / Windows 10 Version 22H2
    < 10.0.19045.7058 (from 10.0.19045.0)
  • Microsoft / Windows 11 version 22H3
    < 10.0.22631.6783 (from 10.0.22631.0)
  • Microsoft / Windows 11 Version 23H2
    < 10.0.22631.6783 (from 10.0.22631.0)
  • Microsoft / Windows 11 Version 24H2
    < 10.0.26100.8037 (from 10.0.26100.0)
  • Microsoft / Windows 11 Version 25H2
    < 10.0.26200.8037 (from 10.0.26200.0)
  • Microsoft / Windows 11 version 26H1
    < 10.0.28000.1719 (from 10.0.28000.0)
  • Microsoft / Windows Server 2012
    < 6.2.9200.25973 (from 6.2.9200.0)
  • Microsoft / Windows Server 2012 (Server Core installation)
    < 6.2.9200.25973 (from 6.2.9200.0)
  • Microsoft / Windows Server 2012 R2
    < 6.3.9600.23074 (from 6.3.9600.0)
  • Microsoft / Windows Server 2012 R2 (Server Core installation)
    < 6.3.9600.23074 (from 6.3.9600.0)
  • Microsoft / Windows Server 2016
    < 10.0.14393.8957 (from 10.0.14393.0)
  • Microsoft / Windows Server 2016 (Server Core installation)
    < 10.0.14393.8957 (from 10.0.14393.0)
  • Microsoft / Windows Server 2019
    < 10.0.17763.8511 (from 10.0.17763.0)
  • Microsoft / Windows Server 2019 (Server Core installation)
    < 10.0.17763.8511 (from 10.0.17763.0)
  • Microsoft / Windows Server 2022
    < 10.0.20348.4893 (from 10.0.20348.0)
  • Microsoft / Windows Server 2022, 23H2 Edition (Server Core installation)
    < 10.0.25398.2207 (from 10.0.25398.0)
  • Microsoft / Windows Server 2025
    < 10.0.26100.32522 (from 10.0.26100.0)
  • Microsoft / Windows Server 2025 (Server Core installation)
    < 10.0.26100.32522 (from 10.0.26100.0)
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
References