| Name | CVE-2026-20760 |
| Description | Improper handling of overlap between protected memory ranges in some microcode for some Intel(R) Processors within Ring 0: Hypervisor may allow an escalation of privilege. Authorized adversary with a privileged user combined with a low complexity attack may enable escalation of privilege. This result may potentially occur via local access when attack requirements are not present without special internal knowledge and requires no user interaction. The potential vulnerability may impact the confidentiality (high), integrity (high) and availability (high) of the vulnerable system, resulting in subsequent system confidentiality (none), integrity (none) and availability (none) impacts. |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| Debian Bugs | 1144158 |
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) | 3.20250812.1~deb11u1 | vulnerable |
| bookworm/non-free-firmware | 3.20251111.1~deb12u1 | vulnerable |
| bookworm/non-free-firmware (security) | 3.20250812.1~deb12u1 | vulnerable |
| trixie/non-free-firmware | 3.20251111.1~deb13u1 | vulnerable |
| trixie/non-free-firmware (security) | 3.20250812.1~deb13u1 | vulnerable |
| sid/non-free-firmware, forky/non-free-firmware | 3.20260227.1 | vulnerable |
The information below is based on the following data on fixed versions.
Notes
[trixie] - intel-microcode <postponed> (As usual fixed top-down, expose first in unstable, then likely point release)
https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20260811
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-01441.html