CVE•Published 2021-12-15•1 article on news•6 live references•NVD data
CVE-2021-0920
Vulnerability data via CVEDB (Shodan)
CVSS v3.1
6.4
MEDIUM
EPSS percentile
57
Exploit Prediction Scoring System · top 43% of all CVEs
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
Timeline
Published 2021-12-15
External references
Search for exposed instances
Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.
Shodan · vuln tag
vuln:CVE-2021-0920Hosts Shodan has explicitly fingerprinted as vulnerable.
Shodan · OS
os:"Debian Linux"Hosts Shodan identified as running Debian Linux.
More intel sources (5)
Shodan report
vuln:CVE-2021-0920Country / ASN / product breakdown for the vuln query.
Censys
vulnerabilities.cve_id: CVE-2021-0920Censys host search filtered to this CVE id.
grep.app
CVE-2021-0920Public source-code mentions — fast PoC discovery.
GitHub code
CVE-2021-0920GitHub code search for direct mentions.
Google dork
"CVE-2021-0920" exploit -site:nvd.nist.govWrite-ups and news, NVD excluded.
Known PoCs on GitHub (8)
CVE-2021-09208 repos
nomi-sec/PoC-in-GitHubunknown
📡 PoC auto collect from GitHub. ⚠️ Be careful Malware.
xairy/linux-kernel-exploitationunknown
A collection of links related to Linux kernel security and exploitation
Ostorlab/KEVunknown
Ostorlab KEV: One-command to detect most remotely known exploitable vulnerabilities. Sourced from CISA KEV, Google's Tsunami, Ostorlab's Asteroid and Bug Bounty programs.
InMyMine7/MephistoPython
A comprehensive WordPress vulnerability scanner and exploitation framework for authorized penetration testing. This tool automatically detects and exploits multiple WordPress secur…
DarkFunct/TK-CVE-RepoPython
TK-CVE-Repo
attilaszia/linux-iot-cvesunknown
sgkdev/bad_garbageC
CVE-2026-53361 AF_UNIX GC vs MSG_PEEK use-after-free container escape
GODofExploit/exploit-arsenalPython
420 standalone Python-3 (stdlib-only) CVE exploits, each live-validated end-to-end against real vulnerable software with a write-up and a real-run screenshot. 102 in the CISA KEV c…