CVE-2026-65810

Analyzed Analyzed - Analysis Complete

Relative Path Traversal in .NET Framework

Publication date: 2026-08-11

Last updated on: 2026-08-14

Assigner: Microsoft Corporation

Description

Relative path traversal in .NET Framework allows an unauthorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-14

Generated

2026-09-01

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-65810

EUVD

EUVD-2026-56745

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	.net_framework	3.5
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	4.8
microsoft	.net_framework	4.8.1

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-23	The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory.

Attack-Flow Graph

Executive Summary

This vulnerability is a relative path traversal issue in .NET Framework that allows an unauthorized attacker to elevate their privileges locally. This means an attacker could gain higher access rights than intended without proper authentication.

Impact Analysis

An attacker could exploit this to gain elevated privileges on your system, potentially allowing them to perform unauthorized actions, install malware, or access sensitive data. This is especially risky if the system handles sensitive information or critical operations.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating compliance requirements for GDPR, HIPAA, and other regulations. Organizations may face legal penalties, reputational damage, and loss of trust if such breaches occur due to unpatched systems.

Mitigation Strategies

Apply the latest security updates from Microsoft for .NET Framework to patch the relative path traversal vulnerability.

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