CVE-2026-21736 json
GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled
published 8mo ago modified 4mo ago also EUVD-2026-10330
- cvss
- 4.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.1%
- EPSS 0.1% chance of exploitation in 30 days, percentile 3%
- public exploits
- 0
- none known
Summary
Software installed and run as a non-privileged user may conduct improper GPU system calls to gain write permission to read-only wrapped user-mode memory.
This is caused by improper handling of the memory protections for the user-mode wrapped memory resource.
Patch / fix
- Imagination Technologies Graphics DDK 25.2 RTM, 26.1 RTM
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 8mo ago
Exploit prediction
0.14% chance of exploitation in the next 30 days, higher than 3% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| CNA | 3.1 | 4.4 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected products
- Imagination Technologies Graphics DDK
Classification
- Weakness
-
- CWE-280 Improper Handling of Insufficient Permissions or Privileges
References
-
imaginationtech.com
/gpu-driver-vulnerabilities/
vendor-advisory
Sources
- CVE List CVE-2026-21736
- NVD CVE-2026-21736
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