🛡️ CVE-2022-2196 on Debian — linux

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

A regression exists in the Linux Kernel within KVM: nVMX that allowed for speculative execution attacks. L2 can carry out Spectre v2 attacks on L1 due to L1 thinking it doesn't need retpolines or IBPB after running L2 due to KVM (L0) advertising eIBRS support to L1. An attacker at L2 with code execution can execute code on an indirect branch on the host machine. We recommend upgrading to Kernel 6.2 or applying the relevant stable backports (v5.4.233, v5.10.170, v5.15.96, v6.1.14).

Distribution advisory

This page covers CVE-2022-2196 as tracked by Debian, for the package linux. The fix is available in version 6.1.15-1; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity high, availability high.

Weakness class

DEBIAN-CVE-2022-2196 is classified as CWE-1188: Insecure Default Initialization of Resource. Default settings are insecure, so an installation is exposed until someone changes them.

Affected software

DEBIAN-CVE-2022-2196 is recorded against 1 package.

  • linux (fixed in 6.1.15-1)

Timeline and source

Published on 9 January 2023 and last revised on 8 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security-tracker.debian.org (Advisory)

CVE-2022-2196 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2023-01-09
Updated 2026-08-12
Modified 2026-08-08
Fix URL N/A

Affected Packages

Software From version Fixed in
linux — 6.1.15-1

Similar Threats

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