CVE-2021-28664
HIGH KEVArm Mali GPU Kernel Driver Bifrost r0p0-r29p0 Midgard r8p0-r30p0 Valhall r19p0-r29p0 - Out-of-bounds Write
Title source: llmExploitation Summary
CVE-2021-28664 is actively exploited and listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added November 3, 2021.
Description
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, Valhall r19p0 through r29p0 before r30p0, and Midgard r8p0 through r30p0 before r31p0.
References (4)
Core 4
Core References
Vendor Advisory
https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
Vendor Advisory
https://developer.arm.com/support/arm-security-updates
US Government Resource
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28664
Scores
CVSS v3
8.8
EPSS
0.0033
EPSS Percentile
56.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
active
Automatable
no
Technical Impact
total
Details
CISA KEV
2021-11-03
VulnCheck KEV
2021-05-03
InTheWild.io
2021-05-03
ENISA EUVD
EUVD-2021-15328
CWE
CWE-787
Status
published
Products (3)
arm/bifrost_gpu_kernel_driver
r0p0 - r29p0
arm/midgard_gpu_kernel_driver
r8p0 - r31p0
arm/valhall_gpu_kernel_driver
r19p0 - r29p0
Published
May 10, 2021
KEV Added
Nov 03, 2021
Tracked Since
Feb 18, 2026