AEGLIX vulnerability intelligence
CVE-2021-28663
HIGH · CVSS 8.8 · Analyzed
Published: 2021-05-10 · Updated: 2026-06-17 · Source: NVD
Vulnerability overview
The Arm Mali GPU kernel driver allows privilege escalation or information disclosure because GPU memory operations are mishandled, leading to a use-after-free. This affects Bifrost r0p0 through r28p0 before r29p0, Valhall r19p0 through r28p0 before r29p0, and Midgard r4p0 through r30p0.
Severity and scoring
- CVSS score
- 8.8 · HIGH
- CVSS version
- 3.1
- CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-416
CVSS measures technical severity; it does not establish whether this vulnerability is being exploited in your environment.
Known exploitation and remediation
Listed in CISA’s Known Exploited Vulnerabilities catalog.
- Affected product
- Arm · Mali Graphics Processing Unit (GPU)
- Added to catalog
- 2021-11-03
- Required action
- Apply updates per vendor instructions.
- CISA remediation due date
- 2021-11-17
CISA deadlines apply to the organizations covered by its directives. Confirm your own remediation requirements.
Verify affected versions and patch availability in the vendor advisory before making changes.
Affected products and versions
cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:*
From (inclusive): r0p0
Before (exclusive): r29p0
cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:*
From (inclusive): r4p0
Before (exclusive): r31p0
cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:*
From (inclusive): r19p0
Before (exclusive): r29p0
These are NVD CPE applicability entries. Some products depend on configuration conditions; consult the official record to confirm applicability.
Advisories and references
- https://developer.arm.com/support/arm-security-updates
Vendor Advisory
- https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver
Vendor Advisory
- https://github.com/lntrx/CVE-2021-28663
Exploit
- https://developer.arm.com/support/arm-security-updates
Vendor Advisory
- https://developer.arm.com/support/arm-security-updates/mali-gpu-kernel-driver
Vendor Advisory
- https://github.com/lntrx/CVE-2021-28663
Exploit
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-28663
US Government Resource