Elevation of Privileges Vulnerability in OpenSSH for Windows
CVE-2025-27731

7.8HIGH

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1809
Windows Server 2019
Windows Server 2019 (server Core Installation)
Windows Server 2022
Vendor
CVE Published:
8 April 2025

What is CVE-2025-27731?

An improper input validation vulnerability in OpenSSH for Windows allows an authorized attacker to escalate privileges locally. This exploitation can lead to unauthorized access and manipulation of sensitive systems. Organizations utilizing OpenSSH for Windows should review their security measures and apply necessary patches to safeguard against this type of attack.

Affected Version(s)

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.7136

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.5737

Windows 10 Version 22H2 x64-based Systems 10.0.19045.0 < 10.0.19045.5737

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisory

CVSS V3.1

Score:
7.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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CVE-2025-27731 : Elevation of Privileges Vulnerability in OpenSSH for Windows