CVE-2026-59130

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

2026-09-01

AI Q&A

2026-08-11

EPSS Evaluated

2026-08-30

NVD

CVE-2026-59130

EUVD

EUVD-2026-56311

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.
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 AMD Zen processors allows an authorized local attacker to disclose sensitive information. It does not require complex access or user interaction beyond basic authorization.

Detection Guidance

This vulnerability involves local information disclosure on AMD Zen systems. Detection requires checking for unauthorized access or unusual data exposure on affected Windows systems. Monitor system logs for suspicious activity and ensure all AMD Zen-based systems have the latest microcode updates from Microsoft.

Impact Analysis

If exploited, this flaw could let attackers access confidential data stored or processed on affected AMD Zen systems. The impact is limited to local access, reducing but not eliminating risk.

Compliance Impact

This vulnerability allows an authorized attacker to disclose information locally, which could lead to unauthorized access to sensitive data. For GDPR, this may result in a data breach requiring notification under Article 33. For HIPAA, it could compromise protected health information, potentially violating the Security Rule.

Mitigation Strategies

Apply the latest AMD Zen microcode updates and firmware patches from your hardware vendor. Monitor Microsoft's update guide for official patches and install them promptly.

Hi! I’m here to help you understand CVE-2026-59130. Ask me anything about the vulnerability, its impact, or mitigation strategies.

0/70