CVE-2023-4211: Arm Mali GPU Kernel Driver Use-After-Free Vulnerability

Is it exploited?

Yes. CISA added it to the Known Exploited Vulnerabilities catalog on 3 Oct 2023, 2 days after the CVE record was published.

How likely is exploitation in the next 30 days?

1.1%

EPSS score, percentile 65.5 of all scored records

How severe?

5.5 Medium

CVSS v3.1 base score, from CISA's enrichment of the record

What should I do?

CISA deadline 24 Oct 2023. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

The CVE record links no vendor advisory, patch or mitigation.

Which versions are affected?

Affected

• r12p0 through r32p0
• r0p0 through r42p0
• r19p0 through r42p0
• r41p0 through r42p0

Versions by product

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

What to do

CISA due date for this action: 24 October 2023.

Advisories and patches

The CVE record links no vendor advisory, patch or mitigation.

Linked from CISA's catalog entry

• https://developer.arm.com/Arm%20Security%20Center/Mali%20GPU%20Driver%20Vulnerabilities
• https://nvd.nist.gov/vuln/detail/CVE-2023-4211

Affected products and versions

As listed in the CVE record.

Versions not listed are: unaffected.

Versions not listed are: unaffected.

Versions not listed are: unaffected.

Versions not listed are: unaffected.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

About this vulnerability

Arm Mali GPU Kernel Driver contains a use-after-free vulnerability that allows a local, non-privileged user to make improper GPU memory processing operations to gain access to already freed memory.

Summary: CISA's KEV catalog, as of 28 Oct 2026.

• CISA added CVE-2023-4211 to its Known Exploited Vulnerabilities (KEV) catalog on 3 Oct 2023.
• CISA's ransomware flag for this entry is "Unknown": no evidence of ransomware use in the catalog, which is not proof of none.
• The due date CISA sets for the required action is 24 Oct 2023.
• The CVE record was published on 1 Oct 2023, 2 days before it was added to KEV.
• The CVE record carries a CVSS v3.1 base score of 5.5 (Medium), taken from CISA's enrichment of the record.
• FIRST's EPSS model puts the probability of exploitation in the next 30 days at 1.1% (percentile 65.5), as of 28 Oct 2026.
• CISA's SSVC assessment in the CVE record: exploitation active, automatable no, technical impact total.

Source: CISA Known Exploited Vulnerabilities (KEV) catalog, 2026.10.28, as of 28 Oct 2026; CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026; FIRST Exploit Prediction Scoring System (EPSS), v2026.06.15, as of 28 Oct 2026. About the data.

Description

Mali GPU Kernel Driver Allows Improper GPU Memory Processing Operations

A local non-privileged user can make improper GPU memory processing operations to gain access to already freed memory.

Source: CVE List V5 (CVE Program), cve_2026-10-28_0000Z, as of 28 Oct 2026. About the data.

Weakness

• CWE-416: Use after free

Attack patterns (CAPEC)

• CAPEC-233: Privilege Escalation

CWE and CAPEC are maintained by MITRE; the entries are those named in the CVE record and the KEV entry.

Timeline

References

• developer.arm.com

More exploited Arm vulnerabilities

• CVE-2024-4610: Arm Mali GPU Kernel Driver Use-After-Free Vulnerability (added 12 Jun 2024)
• CVE-2021-29256: Arm Mali GPU Kernel Driver Use-After-Free Vulnerability (added 7 Jul 2023)
• CVE-2023-26083: Arm Mali GPU Kernel Driver Information Disclosure Vulnerability (added 7 Apr 2023)
• CVE-2022-22706: Arm Mali GPU Kernel Driver Unspecified Vulnerability (added 30 Mar 2023)
• CVE-2022-38181: Arm Mali GPU Kernel Driver Use-After-Free Vulnerability (added 30 Mar 2023)
• CVE-2021-27562: Arm Trusted Firmware Out-of-Bounds Write Vulnerability (added 3 Nov 2021)