CVE-2021-0920 KEV
6.4
MEDIUM · CVSS 3.1 · EPSS 0.8% (pctl 56)
Patch first
On CISA KEV — known exploited in the wild, due 2022-06-13.
Description
In unix_scm_to_skb of af_unix.c, there is a possible use after free bug due to a race condition. This could lead to local escalation of privilege with System execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-196926917References: Upstream kernel
Scoring
| CVSS | 6.4 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H |
| EPSS | 0.82% — more likely to be exploited than 56% of all CVEs |
| Weakness | CWE-362 |
| On CISA KEV | yes — remediate by 2022-06-13 |
| Public exploit | none known |
| Published | 2021-12-15 |
| Last modified | 2026-06-17 |
CISA KEV
| Name | Android Kernel Race Condition Vulnerability |
|---|---|
| Added | 2022-05-23 |
| Due | 2022-06-13 |
| Vendor / product | Android / Kernel |
| Ransomware use | none reported |
Affected (3)
| Vendor | Product |
|---|---|
| debian | debian linux |
| android | |
| linux | linux kernel |
References
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://source.android.com/security/bulletin/2021-11-01
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
- https://source.android.com/security/bulletin/2021-11-01
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920
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