Graphics DDK: Incomplete Cleanup
CVE-2026-7639 is a high-severity incomplete cleanup vulnerability in Graphics DDK from Imagination Technologies, with a CVSS 3.1 base score of 7.8 out of 10. It can be exploited with local access to the system by an attacker with a low-privileged account, without any action from a user. Affected Graphics DDK versions: 1.18 RTM2; 23.2 RTM2; 24.2 RTM2, and others listed below. The record does not name a fixed version, so check the vendor advisory. There is no confirmed exploitation so far. EPSS estimates a 0.18% chance of exploitation within 30 days, which is low compared with other CVEs.
High severity with no evidence of exploitation so far.
What to do
- Update Ddk to 26.1 or a later version.
- Read the advisory on imaginationtech.com for workarounds and exact fixed builds.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 through 25.3 RTM; 26.1 RTM1 | Not stated |
| Imaginationtech | Ddk | before 26.1; 26.1 | 26.1 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- LocalThe attacker needs local access or must trick a user into running something.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- LowA basic user account is enough.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. Scored by CISA (ADP).
Official description
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.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Incomplete Cleanup
The product does not properly clean up and remove temporary or supporting resources after they have been used.
How developers prevent this class of flaw
- Temporary files and other supporting resources should be deleted/released immediately after they are no longer needed.
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: no, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other vulnerabilities in Graphics DDK
- 8.8 High severity
- 9.8 Critical severity
- 7.1 High severity
- 7.8 High severity
- 7.1 High severity
- 7.5 High severity
Recent Incomplete Cleanup vulnerabilities
- 7.5 High severity
- 7.5 High severity
- 9.6 Critical severity
- 8.1 High severity
- 9.8 Critical severity
- 7.5 High severity
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