Vulnerability Intelligence Report
Android Kernel Race Condition Vulnerability
CVE-2021-0920
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
CISA KEV
SSVC: Active Exploitation
CVSS Base Score
6.4
MEDIUM
Exploitability:0.5
Impact Score:5.9
EPSS Probability:0.81%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-416 ↗CWE-416 Use After Free
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| linux | linux_kernel | 5.14 |
| android | all | |
| debian | debian_linux | 9.0 |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Android (associated with Google Inc. or Open Handset Alliance) · Vendor · USA |
| Reserved | 2020-11-06T00:00:00 |
| Published | 2021-12-15T18:05:31 |
| Last Updated | 2025-10-21T23:15:50 |
Community Chatter & Buzz