# CVE-2025-20109

## Summary

- **CVE ID:** CVE-2025-20109
- **Severity:** HIGH
- **CVSS Score:** 7.8 (CVSS:4.0/AV:L/AC:H/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N)
- **CWE:** CWE-653
- **Published:** Aug 12, 2025
- **Last Modified:** Mar 12, 2026

## Description

Improper Isolation or Compartmentalization in the stream cache mechanism for some Intel(R) Processors may allow an authenticated user to potentially enable escalation of privilege via local access.

## Affected Products

- n/a — Intel(R) Processors (See references)

## References

- [CNA](https://intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.html)
- [CVE](https://lists.debian.org/debian-lts-announce/2025/10/msg00027.html)

## Exploitation Prediction (EPSS)

- **EPSS Score:** 0.14%
- **EPSS Percentile:** 3.9

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_Exported from OnDuty AI Vulnerability Intelligence on 2026-09-10._