CVE-2026-32177

HIGH

Microsoft .NET - Heap Buffer Overflow Privilege Escalation

Title source: manual

Heap-based buffer overflow in .NET allows an unauthorized attacker to elevate privileges locally.

Core 4

Core References

Vendor Advisory

Vendor Advisory

Vendor Advisory

Vendor Advisory vendor-advisory patch

.NET Elevation of Privilege Vulnerability

CVSS v3 7.3

EPSS 0.0055

EPSS Percentile 42.3%

Attack Vector LOCAL

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

Vulnrichment

Exploitation none

Automatable no

Technical Impact total

CWE

CWE-122 CWE-20 CWE-787

Status published

Products (25)

microsoft/.net 8.0.0 - 8.0.27

Microsoft/.NET 10.0 10.0.0 - 10.0.8

Microsoft/.NET 8.0 8.0.0 - 8.0.27

Microsoft/.NET 9.0 9.0.0 - 9.0.16

microsoft/.net_framework 4.8

microsoft/.net_framework 4.6.2

microsoft/.net_framework 4.7

microsoft/.net_framework 4.7.1

microsoft/.net_framework 4.7.2

microsoft/.net_framework 3.5

... and 15 more

Published May 12, 2026

Tracked Since May 12, 2026