Use After Free in Google Android
CVE-2026-49743
Software installed and run as a non-privileged user may conduct improper GPU system calls to manipulate the lifetimes of synchronisation objects in the kernel, leading to read/write UAFs. During workload submission involving a fence exported by the GPU driver, the reference count of the underlying synchronisation primitive is not properly incremented. This can be exploited, by destroying the exported fence and prematurely release the underlying primitive, resulting in a potential use-after-free condition.
Vulnerability class: Use-After-Free
EPSS: 0.001 (1.4th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
- Google Android
- Imaginationtech Ddk — versions 24.2, 26.1
- Imagination Technologies Graphics Ddk — versions 1.18 RTM2, 23.2 RTM2, 24.2 RTM2
- Linux Linux_kernel
Weakness classification (CWE)
References
- 367425dc-4d06-4041-9650-c2dc6aaa27ce (Vendor Advisory)
Frequently asked questions
- What is CVE-2026-49743?
- CVE-2026-49743 is a high-severity vulnerability in Google Android, classified under Use After Free. CVSS score: 7.8/10. Published 2026-07-24.
- How severe is CVE-2026-49743?
- High severity. CVSS v3 base score is 7.8 out of 10.