Background exploitation KEV catalog
CVE-2021-28664

Arm Mali Graphics Processing Unit (GPU) Unspecified Vulnerability

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,…

CheckOps priority index
4.9/10 Patch within 7 days
Severity8.8
Probability0.5
Exploitation2/5

Severity = CVSS. Probability = EPSS (FIRST). Exploitation = public signals: KEV, EUVD, ransomware, EPSS above 10 %, no account required.

EPSS · today 5.4% higher than 92.7% of CVEs
CVSS 3.1 8.8 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:
Exploited for 1,827 days 03 Nov 2021
CISA due date 17 Nov 2021 for US federal agencies

Exploitation probability EPSS · FIRST

05010026 Sep06 Oct15 Oct25 Oct03 Nov
EPSS probability (%)Percentile among all CVEs

Exploitation signals 2 / 5

  • KEV catalog (CISA)03 Nov 2021
  • Exploited in EUVD (ENISA)03 Nov 2021
  • Used by ransomwareno
  • EPSS above 10 %5.4%
  • No account, over the networkno

What to do

Fix

Apply the vendor’s fix as soon as it is available.

CISA guidance: Apply updates per vendor instructions.

Meanwhile

Take the service off the internet or restrict access to it, watch the logs and look for signs of compromise.

Manufacturers (CRA)

Exploited vulnerability in your product: early warning to ENISA within 24 h, then notification within 72 h (Article 14 of the Cyber Resilience Act). The CRA explained

Description ENISA EUVD

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.

Affected products

Mali Graphics Processing Unit (GPU)
Weaknesses (CWE)

Open source packages OSV

Affected libraries according to OSV, with fixed versions.

Timeline

  1. Published

  2. Exploitation reported (ENISA)

  3. Added to the KEV catalog

  4. CISA remediation due date

References

Other exploited vulnerabilities from the same vendor

  • CVE-2024-4610Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
    4.2 · Background exploitation
  • CVE-2023-4211Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
    3.4 · Background exploitation
  • CVE-2021-29256Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
    4.8 · Background exploitation
  • CVE-2023-26083Arm Mali GPU Kernel Driver Information Disclosure Vulnerability
    2.6 · Background exploitation
  • CVE-2022-38181Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
    5.9 · Background exploitation
  • CVE-2022-22706Arm Mali GPU Kernel Driver Unspecified Vulnerability
    4.4 · Background exploitation

Are you affected?

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Sources: CISA KEV · ENISA EUVD · FIRST EPSS · OSV. Public data aggregated by CheckOps, updated automatically. Source texts remain the property of their authors. All exploited vulnerabilities