CVE-2026-59131

Modified Modified - Updated After Analysis

AMD Zen Local Information Disclosure Vulnerability

Publication date: 2026-08-11

Last updated on: 2026-08-25

Assigner: Microsoft Corporation

Description

No cwe for this issue in AMD Zen allows an authorized attacker to disclose information locally.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-08-11

Last Modified

2026-08-25

Generated

2026-08-31

AI Q&A

2026-08-12

EPSS Evaluated

2026-08-30

NVD

CVE-2026-59131

EUVD

EUVD-2026-56612

Affected Vendors & Products

Vendor	Product	Version / Range
microsoft	windows_server_2012	r2
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1607	to 10.0.14393.9418 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (exc)
microsoft	windows_10_1809	to 10.0.17763.9115 (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_2019	to 10.0.17763.9115 (exc)
microsoft	windows_server_2022	to 10.0.20348.5440 (exc)
microsoft	windows_server_2025	to 10.0.26100.33222 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-1303	Hardware structures shared across execution contexts (e.g., caches and branch predictors) can violate the expected architecture isolation between contexts.

Attack-Flow Graph

Executive Summary

This vulnerability in AMD Zen processors allows an authorized attacker to disclose information locally. It does not have a specific CWE assigned and has a CVSS base score of 5.6, indicating moderate severity.

Detection Guidance

Detection methods for this vulnerability are not specified in the provided context. Focus on monitoring AMD Zen systems for unusual information disclosure patterns or unauthorized local access attempts.

Impact Analysis

An authorized attacker could exploit this to access sensitive information stored or processed on the affected AMD Zen system. This could include personal data, credentials, or other confidential information.

Compliance Impact

This vulnerability could lead to unauthorized disclosure of personal or sensitive data, potentially violating GDPR, HIPAA, or other regulations that require protection of such information.

Mitigation Strategies

Apply security updates from AMD for Zen processors as soon as they become available to address the information disclosure vulnerability.

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