🛡️ CVE-2021-34866

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

Description

In check_map_func_compatibility of verifier.c, there is a possible way to escalate privileges due to type confusion. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.

Affected software

CVE-2021-34866 is recorded against 1 package.

  • :linux-kernel: (from :0 up to :2022-04-05)

Timeline and source

Published on 1 April 2022 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 OSV.

References

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

CVE-2021-34866 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 N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2022-04-01
Updated 2026-08-11
Modified 2026-08-11

Affected Packages

Software From version Fixed in
:linux-kernel: :0 :2022-04-05

Similar Threats

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