x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
AI Analysis
Technical Summary
This vulnerability concerns the Zen2 CPU microarchitecture's operation cache, where improper isolation of shared resources could lead to security issues. It affects Microsoft products such as Azure Linux 3.0. The Microsoft Security Response Center has published an advisory identifying this issue but has not provided a CVSS score or detailed patch information. No known exploits have been reported. The vulnerability is related to hardware-level resource isolation rather than software flaws.
Potential Impact
The impact involves potential security risks stemming from improper isolation of shared CPU resources in Zen2 processors, which could theoretically allow unauthorized access or leakage of sensitive data between processes. However, no specific exploitation details or confirmed incidents are reported. The lack of known exploits suggests limited or no active threat currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or mitigation instructions are provided at this time. Users should monitor vendor communications for updates.
x86/CPU/AMD: Prevent improper isolation of shared resources in Zen2's op cache
Description
To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns the Zen2 CPU microarchitecture's operation cache, where improper isolation of shared resources could lead to security issues. It affects Microsoft products such as Azure Linux 3.0. The Microsoft Security Response Center has published an advisory identifying this issue but has not provided a CVSS score or detailed patch information. No known exploits have been reported. The vulnerability is related to hardware-level resource isolation rather than software flaws.
Potential Impact
The impact involves potential security risks stemming from improper isolation of shared CPU resources in Zen2 processors, which could theoretically allow unauthorized access or leakage of sensitive data between processes. However, no specific exploitation details or confirmed incidents are reported. The lack of known exploits suggests limited or no active threat currently.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or mitigation instructions are provided at this time. Users should monitor vendor communications for updates.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-46174
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a19febee29bf47b500fdfa6
Added to database: 5/29/2026, 9:01:50 PM
Last enriched: 5/29/2026, 9:08:46 PM
Last updated: 5/31/2026, 4:59:03 AM
Views: 2
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