CVE-2026-69806

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.NET Local Privilege Escalation via Sensitive Information Exposure

Publication date: 2026-09-08

Last updated on: 2026-09-08

Assigner: Microsoft Corporation

Description

Exposure of sensitive information to an unauthorized actor in .NET allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-09-08

Last Modified

2026-09-08

Generated

2026-09-09

AI Q&A

2026-09-09

EPSS Evaluated

N/A

NVD

CVE-2026-69806

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	.net	*

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-94	The product constructs all or part of a code segment using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the syntax or behavior of the intended code segment.
CWE-200	The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.

Attack-Flow Graph

Executive Summary

This vulnerability in .NET allows an authorized attacker to locally elevate privileges by exposing sensitive information to an unauthorized actor. It involves improper handling of data that could be accessed by unintended parties.

Impact Analysis

An attacker could exploit this to gain higher privileges on your system, potentially accessing sensitive data or performing unauthorized actions. The impact includes confidentiality, integrity, and availability risks due to the high CVSS score.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating GDPR and HIPAA requirements for data protection and access controls. Non-compliance risks include legal penalties and reputational damage.

Mitigation Strategies

Apply the latest security updates from Microsoft for .NET to patch the vulnerability. Monitor official Microsoft security advisories for patches and follow their guidance for mitigation steps.

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