Buffer overflow in Arm Bifrost_gpu_kernel_driver
CVE-2021-28664
The Arm Mali GPU kernel driver allows privilege escalation or a denial of service (memory corruption) because an unprivileged user can achieve read/write access to read-only pages. This affects Bifrost r0p0 through r29p0 before r30p0, Valh…
Vulnerability class: Buffer Overflow
EPSS: 0.055 (91.9th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
CISA KEV (Known Exploited Vulnerabilities)
This CVE is on the CISA KEV catalog, added on . CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.
BOD 22-01 due date: .
Required action: Apply updates per vendor instructions.
Public proof-of-concept exploits
References
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Vendor Advisory)
- cve@mitre.org (Vendor Advisory)
- 134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)
Frequently asked questions
- What is CVE-2021-28664?
- CVE-2021-28664 is a high-severity vulnerability in Arm Bifrost_gpu_kernel_driver, classified under Out-of-bounds Write. CVSS score: 8.8/10. Published 2021-05-10.
- How severe is CVE-2021-28664?
- High severity. CVSS v3 base score is 8.8 out of 10.
- Is CVE-2021-28664 known to be exploited?
- Yes. CVE-2021-28664 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2021-11-03), indicating it is being actively exploited. 16 public proof-of-concept repositories are indexed.