CVE-2026-65810

.NET Framework Elevation of Privilege Vulnerability

State: Published
Severity: 7.8 High
Published: Aug 11, 2026
Updated: Oct 30, 2026
Reserved: Jul 22, 2026

Description

Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally.

Scores

CVSS	Score	Vector	Source
3.1	7.8 High	CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-23 Relative Path Traversal

Affected Products

Product	Versions
Microsoft .NET Framework 3.5Microsoft	3.5.0 to before 2.0.50727.9183 & 3.0.30729.9169Affected
Microsoft .NET Framework 3.5 AND 4.6.2/4.7/4.7.1/4.7.2Microsoft	3.0.0.0 to before 2.0.50727.8984 & 3.0.30729.8980 & 4.7.4144.0Affected
Microsoft .NET Framework 3.5 AND 4.7.2Microsoft	4.7.0 to before 2.0.50727.9070 & 3.0.30729.9068 & 4.7.4144.0Affected
Microsoft .NET Framework 3.5 AND 4.8Microsoft	4.8.0 to before 2.0.50727.9070 & 3.0.30729.9068 & 4.8.4805.0Affected
Microsoft .NET Framework 3.5 AND 4.8.1Microsoft	4.8.1 to before 2.0.50727.9183 & 3.0.30729.9169 & 4.8.9343.0Affected
Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2Microsoft	4.7.0 to before 4.7.4144.0Affected
Microsoft .NET Framework 4.8Microsoft	4.8.0 to before 4.8.4805.0Affected
Microsoft .NET Framework 4.8.1Microsoft	4.8.0.0 to before 4.8.9344.0Affected

References

.NET Framework Elevation of Privilege Vulnerabilityvendor-advisorypatch

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