{"cve":"CVE-2021-0920","nvd":{"published":"2021-12-15T19:15:11.017","modified":"2026-06-17T03:30:39.430","status":"Analyzed","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","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H","score":6.4},"cwes":["CWE-362","CWE-416"],"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"],"products":["debian:debian_linux","google:android","linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T21:25:41.256909649+00:00"},"epss":{"cve":"CVE-2021-0920","score":0.00867,"percentile":0.58746,"date":"2026-11-01"},"kev":{"cve":"CVE-2021-0920","date_added":"2022-05-23","due_date":"2022-06-13","vendor":"Android","product":"Kernel","known_ransomware":false},"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}