Information Disclosure Vulnerability in AMD Zen Processors
CVE-2026-84004

5.5MEDIUM

Key Information:

Vendor

Microsoft
Status
Windows 10 Version 1607
Windows 10 Version 1809
Windows 10 Version 21h2
Windows 10 Version 22h2
Vendor
CVE Published:
10 November 2026

What is CVE-2026-84004?

The vulnerability in AMD Zen processors involves the potential removal or modification of security-critical code optimization. This issue could allow an authorized attacker to gain local access to disclose sensitive information, emphasizing the need for timely updates and patches to mitigate risks associated with processor security.

Affected Version(s)

Windows 10 Version 1607 32-bit Systems 10.0.14393.0 < 10.0.14393.9612

Windows 10 Version 1809 32-bit Systems 10.0.17763.0 < 10.0.17763.9376

Windows 10 Version 21H2 32-bit Systems 10.0.19044.0 < 10.0.19044.7807

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE...
vendor-advisorypatch

CVSS V3.1

Score:
5.5
Severity:
MEDIUM
Confidentiality:
High
Integrity:
None
Availability:
High
Attack Vector:
Local
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

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