CVE tracker / CVE-2026-26183
CVE-2026-26183
CVE-2026-26183 is the Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability. Microsoft rates it Important, CVSS 7.8. It is not in CISA's Known Exploited Vulnerabilities catalog. Published April 14, 2026.
Risk summary
Microsoft describes it: “Improper access control in Windows RPC API allows an authorized attacker to elevate privileges locally.”
How to fix it
Microsoft lists 13 affected products and the update that fixes each:
- KB5082060 · fixed build 10.0.25398.2274
Windows Server 2022, 23H2 Edition (Server Core installation) - KB5082063 · fixed build 10.0.26100.32690
Windows Server 2025, Windows Server 2025 (Server Core installation) - KB5082123 · fixed build 10.0.17763.8644
Windows Server 2019 (Server Core installation), Windows Server 2019 - KB5082126 · fixed build 6.3.9600.23132
Windows Server 2012 R2 (Server Core installation), Windows Server 2012 R2 - KB5082127 · fixed build 6.2.9200.26026
Windows Server 2012 (Server Core installation), Windows Server 2012 - KB5082142 · fixed build 10.0.20348.5020
Windows Server 2022 (Server Core installation), Windows Server 2022 - KB5082198 · fixed build 10.0.14393.9060
Windows Server 2016 (Server Core installation), Windows Server 2016
What Microsoft changed
- April 14, 2026: Information published.
Details
- Weakness
- CWE-284: Improper Access Control
- Publicly disclosed (Microsoft)
- No
- Exploited (Microsoft)
- No
- Known exploited (CISA KEV)
- Not listed
- Published
- April 14, 2026
- Last revised
- April 14, 2026
Get told when this changes
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References
From Microsoft, CISA, NVD and FIRST data; the Microsoft details were read when this page was opened. Check the references above before you act.