CVE-2026-96316

Analyzed Analyzed - Analysis Complete

Improper Access Control in Windows RRAS

Publication date: 2026-10-13

Last updated on: 2026-10-16

Assigner: Microsoft Corporation

Description

Improper access control in Windows Routing and Remote Access Service (RRAS) allows an authorized attacker to perform tampering locally.

CVSS Scores

EPSS Scores

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Meta Information

Published

2026-10-13

Last Modified

2026-10-16

Generated

2026-10-19

AI Q&A

2026-10-14

EPSS Evaluated

2026-10-18

NVD

CVE-2026-96316

EUVD

EUVD-2026-99770

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_server_2012	*
microsoft	windows_server_2022	to 10.0.20348.5761 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1607	to 10.0.14393.9612 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_1809	to 10.0.17763.9376 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_10_21h2	to 10.0.19044.7807 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_23h2	to 10.0.22631.7652 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_24h2	to 10.0.26100.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_25h2	to 10.0.26200.9711 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h1	to 10.0.28000.3231 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_11_26h2	to 10.0.26300.9711 (exc)
microsoft	windows_server_2016	to 10.0.14393.9612 (exc)
microsoft	windows_server_2019	to 10.0.17763.9376 (exc)
microsoft	windows_server_2025	to 10.0.26100.33650 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)
microsoft	windows_10_22h2	to 10.0.19045.7807 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-862	The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

Executive Summary

This vulnerability involves improper access control in Windows Routing and Remote Access Service (RRAS). An authorized attacker can perform tampering actions locally on affected systems.

Detection Guidance

Detecting this vulnerability requires checking for unauthorized modifications to RRAS configurations. Review Windows Event Logs for RRAS-related events, particularly under 'Applications and Services Logs > Microsoft > Windows > RemoteAccess'. Look for unusual administrative changes or tampering attempts.

Impact Analysis

An attacker with local access could modify system configurations or data through RRAS, potentially leading to unauthorized changes or disruptions in network routing and remote access functionality.

Compliance Impact

This vulnerability allows unauthorized tampering via improper access control in Windows RRAS, which could lead to data integrity issues. For GDPR, this may violate Article 32 (integrity and confidentiality) if personal data is altered. For HIPAA, it could compromise data integrity requirements under the Security Rule.

Mitigation Strategies

Apply the latest security updates from Microsoft to patch the improper access control in RRAS. Monitor for unauthorized changes to routing configurations and restrict local access to sensitive system components.

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