CVE-2023-4211
Arm Mali GPU Kernel Driver Use-After-Free Vulnerability
Arm Mali GPU Kernel Driver
A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 3 October 2023. US federal agencies were required to remediate it by 24 October 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 1%, which is higher than 62.4% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Frequently asked questions
Is CVE-2023-4211 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2023-4211.
What does CVE-2023-4211 affect?
CVE-2023-4211 affects Arm Mali GPU Kernel Driver. A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.
How severe is CVE-2023-4211?
CVE-2023-4211 is rated MEDIUM with a CVSS base score of 5.5. EPSS puts the probability of exploitation in the next 30 days at 1%, higher than 62.4% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 24 October 2023.
How should organisations respond to CVE-2023-4211?
Apply the vendor patch for Arm Mali GPU Kernel Driver as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.