CVE-2026-62909

.NET Elevation of Privilege Vulnerability

State: Published
Severity: 7.8 High
Published: Aug 11, 2026
Updated: Oct 30, 2026
Reserved: Jul 14, 2026

Description

Uncaught exception in .NET allows an authorized attacker to elevate privileges locally.

Scores

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

Weaknesses

CWE-252 Unchecked Return Value

Affected Products

Product	Versions
.NET 10.0 runtimeMicrosoft	10.0.0 to before 10.0.11Affected
.NET 8.0 runtimeMicrosoft	8.0.0 to before 8.0.30Affected
.NET 9.0 runtimeMicrosoft	9.0.0 to before 9.0.19Affected
Microsoft Visual Studio 2022 version 17.14Microsoft	17.14.0 to before 17.14.38Affected
Microsoft Visual Studio 2026 version 18.8Microsoft	18.0 to before 18.8.3Affected

References

.NET Elevation of Privilege Vulnerabilityvendor-advisorypatch

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