CVE-2026-65795

Modified Modified - Updated After Analysis

Windows DNS Local Privilege Escalation Vulnerability

Publication date: 2026-08-11

Last updated on: 2026-08-21

Assigner: Microsoft Corporation

Description

Relative path traversal in Windows DNS allows an authorized attacker to elevate privileges locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-21

Generated

2026-08-31

AI Q&A

2026-08-11

EPSS Evaluated

2026-08-30

NVD

CVE-2026-65795

EUVD

EUVD-2026-56739

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7663 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7517 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9106 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_26h1	to 10.0.28000.2704 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9106 (exc)
microsoft	windows_server_2016	to 10.0.14393.9418 (exc)
microsoft	windows_server_2022	to 10.0.20348.5440 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)
microsoft	windows_10_1809	to 10.0.17763.9121 (exc)
microsoft	windows_10_1809	to 10.0.17763.9121 (exc)
microsoft	windows_server_2019	to 10.0.17763.9121 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-197	Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion.

Attack-Flow Graph

Executive Summary

This vulnerability in Windows DNS allows an authorized attacker to elevate their privileges locally. This means an attacker with some access could gain higher-level permissions on the system.

Detection Guidance

This vulnerability involves Windows DNS allowing local privilege escalation. Detection requires checking for unauthorized privilege changes or suspicious DNS service modifications. Review Windows Event Logs for DNS service events and check for unexpected privilege assignments.

Impact Analysis

If exploited, this vulnerability could allow an attacker to gain elevated privileges on your system. This might let them install programs, view or delete data, or create new accounts with full user rights.

Compliance Impact

This vulnerability allows an authorized attacker to elevate privileges locally in Windows DNS, which could lead to unauthorized access or control over systems. This may impact compliance with standards requiring strict access controls, such as HIPAA for protected health information or GDPR for personal data protection, by potentially enabling unauthorized data access or modification.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the Windows DNS vulnerability. Monitor Microsoft's update guide for patches and install them promptly.

Hi! I’m here to help you understand CVE-2026-65795. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70