Denial of Service Vulnerability in Intel Microcode Packages
Summary
CVE-2025-20054: Uncaught exception in the core management mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable denial of service via local access. Affects intel-ucode versions < 20250512-r0. Fixed in 20250512-r0. How to fix ↓
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Background
Intel microcode is a crucial component that updates the processor's internal control logic, enhancing performance and security. It is essential for the proper functioning of Intel processors across various Debian ecosystems, including Debian 11, 12, and 13. This vulnerability exposes the microcode to potential denial of service attacks, which could disrupt system operations.
Vulnerability Detail
The vulnerability, identified as CVE-2025-20054, arises from an uncaught exception in the core management mechanism of certain Intel processors. This flaw allows an authenticated user with local access to potentially trigger a denial of service condition. The implications of this vulnerability can lead to system instability and interruptions in service, making it critical for users to address it promptly.
How To Fix
Minimum fixed version
20250512-r0
This is the first release that contains the fix.
sudo apk add --upgrade intel-ucodeTip — Not sure which version your app runs? Vulert can match this fix to it. Scan free →
Workaround
As of now, there are no specific workarounds mentioned for this vulnerability. Users are encouraged to apply the patch as soon as it becomes available.
Conclusion
CVE-2025-20054 represents a significant risk for users of Intel microcode across Debian ecosystems. It is essential to stay informed about updates and apply patches promptly to maintain system integrity and security.
See every vulnerability recorded for intel-ucode →
FAQ
CVE-2025-20054 is a vulnerability in Intel microcode that may allow an authenticated user to enable denial of service via local access.
You can use Vulert, which monitors and alerts for open-source vulnerabilities in your software. Visit Vulert Scanner to check if your application is affected without requiring any signup.
The vulnerability can lead to system instability and denial of service, affecting the performance and reliability of systems using the affected Intel processors.
Yes, users are advised to update their Intel microcode package to the latest version to mitigate this vulnerability.
While there are no specific workarounds available, it is recommended to monitor the situation and apply the patch as soon as it is feasible.
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