CVE-2026-58641

high

Microsoft

CVSS v3 Base Score

7.8

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Score

0.4%

Exploitation probability in 30 days

Top 66% most likely to be exploited

Attack Characteristics

Attack Vector

Local

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Confidentiality

High

Integrity

High

Availability

High

Published: August 11, 2026 (26 days ago)

Last Modified: September 3, 2026

Source: NVD

Description

Integer overflow or wraparound in .NET allows an unauthorized attacker to elevate privileges locally.

CWE-190

microsoft .net