CVE-2026-62872

.NET Framework Elevation of Privilege Vulnerability

State: Published
Severity: 8.8 High
Published: Aug 11, 2026
Updated: Oct 30, 2026
Reserved: Jul 14, 2026

Description

Incorrect authorization in .NET Framework allows an authorized attacker to elevate privileges over a network.

Scores

CVSS	Score	Vector	Source
3.1	8.8 High	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C	microsoft

Weaknesses

CWE-863 Incorrect Authorization

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

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.