CVE-2021-28663
Actively exploited. CVE-2021-28663 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03) — exploitation has been observed in the wild, and US federal agencies are required to remediate it under BOD 22-01. Treat patching as urgent.
Public exploit code is available. Proof-of-concept or working exploit code for CVE-2021-28663 is indexed in GitHub PoC. Expect opportunistic scanning and exploitation attempts — prioritize remediation.
Arm Mali Graphics Processing Unit (GPU) kernel driver contains a use-after-free vulnerability that may allow a non-privileged user to make improper operations on GPU memory to gain root privilege, and/or disclose information.
CSIRTS triage
- What
- Arm Mali GPU kernel driver contains a use-after-free vulnerability that may allow a non-privileged user to gain root privilege or disclose information.
- Who is affected
- Users of Arm Mali GPU are affected.
- Urgency
- Remediation is urgent due to active exploitation and critical severity.
- Action
- Update the Arm Mali GPU driver to the latest version.
AI-assisted analysis generated from the source advisory — verify against the original.
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Exploitation outlook
- Exploitation confirmedAlready exploited in the wild (CISA KEV) — the prediction phase is over. Patch now. Riskier than 96% of all EPSS-scored CVEs.
Exploit availability
Public exploit or proof-of-concept code for CVE-2021-28663 is indexed in these free datasets. Available exploit code raises real-world risk independent of the CVSS score.
- GitHub PoCPublic proof-of-concept repositories on GitHub reference this CVE.look it up ↗
Advisory coverage (1)
- criticalexploitedCVE-2021-28663: Arm Mali Graphics Processing Unit (GPU) Use-After-Free Vulnerabilitycisa-kev · 2021-11-03
External references
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[](https://www.csirts.com/cve/CVE-2021-28663)