CVE-2026-21736
GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled
CVE-2026-21736 is a medium vulnerability (CVSS 4.4) in Imaginationtech Ddk, published March 9, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.14%, the 3rd percentile. Fixed in :unknown: SoCVersion:2026-06-05.
- Severity
- 4.4 MediumCVSS 3.1, CVE List
- Exploit chance
- 0.14%EPSS, 3rd percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
SoCVersion:2026-06-05:unknown:
Description
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- None
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
:unknown:Android | SoCVersion:0 up to SoCVersion:2026-06-05, plus listed versions SoCVersion | SoCVersion:2026-06-05 |
What each source reports
CVE List Score used
GPU DDK - Insufficient permission check in PhysmemWrapExtMem() when write attribute support enabled
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.
- Record
CVE-2026-21736- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-280
- Updated
- 2026-11-02
EUVDEUVD-2026-10330
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.
- Record
EUVD-2026-10330- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-vjrg-fwqx-82jx
Software installed and run as a non-privileged user may conduct improper GPU system calls to gain...
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.
- Record
GHSA-vjrg-fwqx-82jx- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-280
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-21736- CVSS 3.1
- 4.4 Medium
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-280
- Updated
- 2026-11-02
History
| Recorded | Changed | Sources |
|---|---|---|
| facts | OSV | |
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.