CVE-2023-26083
Arm Mali GPU Kernel Driver Information Disclosure Vulnerability
Arm Mali Graphics Processing Unit (GPU)
Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver all versions from r0p0 - r42p0, Valhall GPU Kernel Driver all versions from r19p0 - r42p0, and Avalon GPU Kernel Driver all versions from r41p0 - r42p0 allows a non-privileged user to make valid GPU processing operations that expose sensitive kernel metadata.
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 7 April 2023. US federal agencies were required to remediate it by 28 April 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 1.2%, which is higher than 68.4% 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:L/I:N/A:N
Frequently asked questions
Is CVE-2023-26083 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2023-26083.
What does CVE-2023-26083 affect?
CVE-2023-26083 affects Arm Mali Graphics Processing Unit (GPU). Memory leak vulnerability in Mali GPU Kernel Driver in Midgard GPU Kernel Driver all versions from r6p0 - r32p0, Bifrost GPU Kernel Driver all versions from r0p0 - r42p0, Valhall GPU Kernel Driver all versions from r19p0 - r42p0, and Avalon GPU Kernel Driver all versions from r41p0 - r42p0 allows a non-privileged user to make valid GPU processing operations that expose sensitive kernel metadata.
How severe is CVE-2023-26083?
CVE-2023-26083 is rated LOW with a CVSS base score of 3.3. EPSS puts the probability of exploitation in the next 30 days at 1.2%, higher than 68.4% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 28 April 2023.
How should organisations respond to CVE-2023-26083?
Apply the vendor patch for Arm Mali Graphics Processing Unit (GPU) 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.