🛡️ CVE-2022-42720 — debian-linux

🟠 CVSS 7.8 — High ✅ No Known Exploit NVD
7.8
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Various refcounting bugs in the multi-BSS handling in the mac80211 stack in the Linux kernel 5.1 through 5.19.x before 5.19.16 could be used by local attackers (able to inject WLAN frames) to trigger use-after-free conditions to potentially execute code.

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 unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability high.

Affected software

CVE-2022-42720 is recorded against 4 packages.

  • :linux-kernel: (from :0 up to :2023-01-05)
  • debian-linux
  • fedora
  • linux-kernel (from 6.0 up to 6.0.2)

Timeline and source

Published on 1 January 2023 and last revised on 11 August 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

source.android.com (Advisory)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)
android.googlesource.com (Fix)

CVE-2022-42720 on other distributions

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

Details

Severity High
CVSS Score 7.8
CVSS Vector CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE N/A
Public Exploit ✅ No
Source NVD
Published 2023-01-01
Updated 2026-08-11
Modified 2026-08-11

Affected Packages

Software From version Fixed in
:linux-kernel: :0 :2023-01-05
debian-linux
fedora
linux-kernel 6.0 6.0.2

References

Similar Threats

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