CVE-2023-20592
6.5
MEDIUM
CVSS 3.1
EPSS 0.36%
Description
Improper or unexpected behavior of the INVD instruction in some AMD CPUs may allow an attacker with a malicious hypervisor to affect cache line write-back behavior of the CPU leading to a potential loss of guest virtual machine (VM) memory integrity.
How to fix CVE-2023-20592
To remediate CVE-2023-20592, upgrade the affected package to a fixed version below.
- Debian/amd64-microcode—upgrade to 3.20230719.1~deb11u1 or later
Is CVE-2023-20592 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- from 0, < 3.20230719.1~deb11u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |