AEGLIX vulnerability intelligence
CVE-2021-0920
MEDIUM · CVSS 6.4 · Analyzed
Published: 2021-12-15 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
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
Severity and scoring
- CVSS score
- 6.4 · MEDIUM
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-362, CWE-416
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Android · Kernel
- Added to catalog
- 2022-05-23
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2022-06-13
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Through (inclusive): 5.13
cpe:2.3:o:linux:linux_kernel:5.14:rc1:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc2:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:5.14:rc3:*:*:*:*:*:*
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
Mailing List · Third Party Advisory
- https://source.android.com/security/bulletin/2021-11-01
Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html
Mailing List · Third Party Advisory
- https://source.android.com/security/bulletin/2021-11-01
Vendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-0920
Third Party Advisory · US Government Resource