PatchTheCVECVE-2026-7639: Software installed and run as a non-privileged user may conduct a sequence of improper GPU system calls causin
CVE-2026-7639 is a high-severity flaw (CVSS 7.8) affecting ddk. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- High severity
A fixed release or distro patch exists.
Risk facts
| CVSS score | 7.8 (High) |
| Attack vector | Local |
| Attack complexity | Low |
| Privileges needed | Low |
| User interaction | None |
| EPSS exploit chance | 0.2% (top 93%) |
| CISA exploited list | No |
| Weakness | CWE-459 |
| Published | 2026-07-10 |
| Last modified | 2026-10-25 |
Last updated 2026-10-25 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-7639?
ddk: upgrade to 26.1. Exact commands for each OS are on this page.
Is CVE-2026-7639 being exploited?
CVE-2026-7639 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-7639 affect?
CVE-2026-7639 affects ddk. Severity is high (CVSS 7.8). 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
How urgent is CVE-2026-7639?
Priority 29/100. High severity
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