How to check if you are exposed to CVE-2021-29256
- Find every Arm Mali Graphics Processing Unit (GPU) system you or your clients run, including ones exposed to the internet. Those come first: CISA only lists flaws attackers are already using.
- Compare each version with the fixed versions in the vendor advisory below. Where no fix exists yet, apply the vendor’s mitigation or take the system off the internet.
- Run a credentialed vulnerability scan to catch the systems you missed, then check that the next scan no longer reports CVE-2021-29256.
US federal agencies had to fix this by 2023-07-28. Everyone else should treat that deadline as a guide: if it has passed, this is overdue.
Timeline
- · Added to CISA's Known Exploited Vulnerabilities catalog
- · Fix-by date for US federal agencies, passed 1,192 days ago
Vendor advisories and fixes
Weakness type
More exploited Arm vulnerabilities
CISA lists 9 exploited Arm vulnerabilities. The closest matches:
- CVE-2023-26083Arm Mali GPU Kernel Driver Information Disclosure VulnerabilityAdded 2023-04-07
- CVE-2022-38181Arm Mali GPU Kernel Driver Use-After-Free VulnerabilityAdded 2023-03-30
- CVE-2022-22706Arm Mali GPU Kernel Driver Unspecified VulnerabilityAdded 2023-03-30
- CVE-2021-28664Arm Mali Graphics Processing Unit (GPU) Unspecified VulnerabilityAdded 2021-11-03
- CVE-2021-28663Arm Mali Graphics Processing Unit (GPU) Use-After-Free VulnerabilityAdded 2021-11-03
- CVE-2024-4610Arm Mali GPU Kernel Driver Use-After-Free VulnerabilityAdded 2024-06-12
- CVE-2023-4211Arm Mali GPU Kernel Driver Use-After-Free VulnerabilityAdded 2023-10-03
- CVE-2021-27562Arm Trusted Firmware Out-of-Bounds Write VulnerabilityAdded 2021-11-03
Keep going
Sources: CISA Known Exploited Vulnerabilities catalog (version 2026.10.30); EPSS data from FIRST.org; CVSS and descriptions from the NIST National Vulnerability Database. Checked 2026-11-01. This product uses the NVD API but is not endorsed or certified by the NVD.