May 2026: .NET Elevation of Privilege Vulnerability
CVE-2026-32177 Published on May 12, 2026

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

Vendor Advisory NVD

Vulnerability Analysis

CVE-2026-32177 can be exploited with local system access, and requires small amount of user privileges. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a high impact on confidentiality and integrity, and a small impact on availability.

Attack Vector:
LOCAL
Attack Complexity:
LOW
Privileges Required:
LOW
User Interaction:
NONE
Scope:
UNCHANGED
Confidentiality Impact:
HIGH
Integrity Impact:
HIGH
Availability Impact:
LOW

Weakness Types

Heap-based Buffer Overflow

A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc().

Improper Input Validation

The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.


Products Associated with CVE-2026-32177

You can be notified by email with stack.watch whenever vulnerabilities like CVE-2026-32177 are published in these products:

Microsoft Net
 
Microsoft Visual Studio 2017
 
Microsoft Visual Studio 2019
 
Microsoft Visual Studio 2022
 
Microsoft Visual Studio 2026
 
Red Hat Enterprise Linux (RHEL)
 
Red Hat Hummingbird
 

Affected Versions

Microsoft .NET 10.0: Microsoft .NET 8.0: Microsoft .NET 9.0: Microsoft .NET Framework 3.5: Microsoft .NET Framework 3.5 AND 4.7.2: Microsoft .NET Framework 3.5 AND 4.8: Microsoft .NET Framework 3.5 AND 4.8.1: Microsoft .NET Framework 4.6.2/4.7/4.7.1/4.7.2: Microsoft .NET Framework 4.8: Microsoft Visual Studio 2022 version 17.12: Microsoft Visual Studio 2022 version 17.14: Microsoft Visual Studio 2026 version 18.5: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 10: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 8: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Enterprise Linux 9: Red Hat Hardened Images: Red Hat Hardened Images: Red Hat Hardened Images:

Exploit Probability

EPSS
0.42%
Percentile
33.12%

EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.