1. Home
  2. CVE Database
  3. CVE-2026-50365
HIGH · 8.0

CVE-2026-50365

Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.

Vulnerability Description

Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.

CVSS Score

8.0

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector
ADJACENT_NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH

Affected Products

VendorProductVersions
MicrosoftWindows 10 1607< 10.0.14393.9339
MicrosoftWindows 10 1809< 10.0.17763.9020
MicrosoftWindows 10 21H2< 10.0.19044.7548
MicrosoftWindows 10 22H2< 10.0.19045.7548
MicrosoftWindows 11 24H2< 10.0.26100.8875
MicrosoftWindows 11 25H2< 10.0.26200.8875
MicrosoftWindows 11 26H1< 10.0.28000.2525
MicrosoftWindows Server 2012-
MicrosoftWindows Server 2016< 10.0.14393.9339
MicrosoftWindows Server 2019< 10.0.17763.9020
MicrosoftWindows Server 2022< 10.0.20348.5386
MicrosoftWindows Server 2025< 10.0.26100.33158

Related Weaknesses (CWE)

CWE-287

References

FAQ

What is CVE-2026-50365?

CVE-2026-50365 is a vulnerability with a CVSS score of 8.0 (HIGH). Improper authentication in Windows RPC API allows an unauthorized attacker to elevate privileges over an adjacent network.

How severe is CVE-2026-50365?

CVE-2026-50365 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-50365?

Check the references section above for vendor advisories and patch information. Affected products include: Microsoft Windows 10 1607, Microsoft Windows 10 1809, Microsoft Windows 10 21H2, Microsoft Windows 10 22H2, Microsoft Windows 11 24H2.