What is CVE-2026-45203?

CVE-2026-45203 is a high-severity vulnerability in Google Android, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2026-07-10.

How severe is CVE-2026-45203?

High severity. CVSS v3 base score is 7.8 out of 10.

Vulnerability in Google Android

CVE-2026-45203

Kernel software installed and running inside a Host VM may post improper commands to the GPU Firmware to trigger a memory write outside the permitted range of memory for the host kernel. A TOCTOU bug existed where a malicious driver could modify values in memory after firmware validation but before use.

Vulnerability class: TOCTOU (Time-of-Check to Time-of-Use)

EPSS: 0.001 (2.4th 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 26.1
Imagination Technologies Graphics Ddk — versions 1.18 RTM2, 23.2 RTM2, 24.2 RTM2
Linux Linux_kernel

Weakness classification (CWE)

CWE-367 — Time-of-check Time-of-use (TOCTOU) Race Condition

References

367425dc-4d06-4041-9650-c2dc6aaa27ce (Vendor Advisory)

Frequently asked questions

What is CVE-2026-45203?: CVE-2026-45203 is a high-severity vulnerability in Google Android, classified under Time-of-check Time-of-use (TOCTOU) Race Condition. CVSS score: 7.8/10. Published 2026-07-10.
How severe is CVE-2026-45203?: High severity. CVSS v3 base score is 7.8 out of 10.