| Name | CVE-2025-20109 |
| 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. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1110983 |
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|
| intel-microcode (PTS) | bullseye/non-free | 3.20240813.1~deb11u1 | vulnerable |
| bullseye/non-free (security) | 3.20250512.1~deb11u1 | vulnerable |
| bookworm/non-free-firmware (security), bookworm/non-free-firmware | 3.20250512.1~deb12u1 | vulnerable |
| forky/non-free-firmware, trixie/non-free-firmware | 3.20250512.1 | vulnerable |
| sid/non-free-firmware | 3.20250812.1 | fixed |
The information below is based on the following data on fixed versions.
Notes
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01249.html
https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20250812