CVE-2021-28664 is a critical privilege escalation and denial-of-service vulnerability affecting Arm Mali GPU kernel drivers (Bifrost, Valhall, and Midgard series). An unprivileged user can achieve read/write access to read-only memory pages, leading to memory corruption. With a CVSS score of 8.8 (HIGH), this vulnerability is easily exploitable over a network with low privileges and no user interaction, potentially resulting in full confidentiality, integrity, and availability compromise. This flaw is actively exploited in the wild, as confirmed by its presence in the KEV catalog and significant media coverage, despite no public exploit code being readily available.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= r0p0, < r29p0CPE matchmatch criteria | cpe:2.3:a:arm:bifrost_gpu_kernel_driver:*:*:*:*:*:*:*:* | ||
>= r8p0, < r31p0CPE matchmatch criteria | cpe:2.3:a:arm:midgard_gpu_kernel_driver:*:*:*:*:*:*:*:* | ||
>= r19p0, < r29p0CPE matchmatch criteria | cpe:2.3:a:arm:valhall_gpu_kernel_driver:*:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
Remediation records are not available for this CVE.