CVE-2026-7639

HIGH 7.8 ALL-YEARS

Published 2026-07-10 · Last modified 2026-07-13 · imaginationtech · NVD: Analyzed

Software installed and run as a non-privileged user may conduct a sequence of improper GPU system calls causing use after free, which helps in facilitating unprivileged memory access from a shader code. Triggering failure path in the MMU mapping logic by a malicious code could lead to incomplete cleanup of an internal driver state, allowing for future unauthorized access to the contents of the physical memory.

ELEVATED IMPACT

Severe if exploited (CVSS 7.8), but no confirmed exploitation. Patch on a normal cadence.

Exploitation likelihood

0.2%chance of exploitation in 30 days · 7th percentile

○ In CISA KEV○ Catalogued PoC◆ SSVC: exploitation none, automatable no

Impact if exploited

7.8CVSS 3.1 · HIGH · ADP

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

What an attacker needs

⚠Access: Requires local access to the host
⚠Privileges: Requires a low-privilege account
✓User interaction: No user interaction needed
✓Complexity: No special conditions — reliably repeatable

✓ lowers the bar for an attacker · ⚠ raises it

Proof of concept

No public PoC is currently catalogued.

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Tracked sources are checked weekly for the full archive, including PoCs published after the original disclosure. A later release appears after a tracked source lists it and a refresh succeeds.

Affected

Vendors Imagination Technologies Imaginationtech Google Linux

Products Graphics Ddk Ddk Android Linux Kernel

Weakness (CWE)

CWE-459: : Incomplete Cleanup

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References and research data (JSON)

Known Affected Software Configurations

Vendor	Product	Version range
Imaginationtech	Ddk	< 26.1
Imaginationtech	Ddk	26.1

All CVSS metrics

HIGH 7.8 v3.1 · ADP Primary
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
HIGH 7.8 v3.1 · NVD Secondary
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

References

Advisories

https://www.imaginationtech.com/gpu-driver-vulnerabilities/ Vendor AdvisoryCVE record · imaginationtech · Updated 2026-07-10T20:50:27.730Z
NVD · CVE-2026-7639 · Updated 2026-10-25T15:10:00.147
https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-43037 ADVISORYEUVD · EUVD-2026-43037

Sources: NVD · CVE.org · All sources and attribution · EPSS