CVE-2021-0945
NVD-CWE-noinfoPublished: June 15, 2023· Updated: Jun 17, 2026
Official Description
In _PMRCreate of the PowerVR kernel driver, a missing bounds check means it is possible to overwrite heap memory via PhysmemNewRamBackedPMR. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
Risk Analysis
The PowerVR kernel driver contains a missing bounds check that allows for heap memory overwrites. This critical vulnerability could lead to local privilege escalation.
There is no known public exploit, and it is not in the CISA KEV catalog. Despite the AV:N vector, this is a kernel-level issue.
Ensure all Android system updates containing the latest kernel patches are installed.
Technical Analysis
CVE-2021-0945 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.
A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 9.8.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (2)
Quick Facts
Related CVEs (NVD-CWE-noinfo)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2021-0945 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts