GPU DDK - Page UAF read in PMMETA_PROTECT heap memory
Priority LOW 35CWE-459Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
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 it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00179 7th percentileScored 2026-11-07
Fix Fixed Graphics DDK (Imagination Technologies): 26.1 RTM2
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Imagination Technologies | Graphics DDK | 1.18 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM1 | 26.1 RTM2 | Patch available | CNA |
- Graphics DDK VendorImagination Technologies Affected 1.18 RTM2; 23.2 RTM2; 24.2 RTM2; 25.1 RTM2 – 25.3 RTM; 26.1 RTM1 Fixed in 26.1 RTM2 Patch available CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* | before 26.1 | Vulnerable | Imagination Technologies |
| cpe:2.3:a:imaginationtech:ddk:26.1:rtm1:*:*:*:*:*:* | 26.1 rtm1 | Vulnerable | Imagination Technologies |
| cpe:2.3:o:google:android:-:*:*:*:*:*:*:* | not specified by NVD | Running on | |
| cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* | not specified by NVD | Running on | Linux |
- cpe:2.3:a:imaginationtech:ddk:*:*:*:*:*:*:*:* Versions before 26.1 Vulnerable ·Imagination Technologies
- cpe:2.3:a:imaginationtech:ddk:26.1:rtm1:*:*:*:*:*:* Versions 26.1 rtm1 Vulnerable ·Imagination Technologies
- cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Google
- cpe:2.3:o:linux:linux_kernel:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Linux
Remediation
- Fix · CNA Graphics DDK (Imagination Technologies) Fixed in 26.1 RTM2
Timeline
- 2026-10-02 Threatist record created from CVE-2026-7639
- 2026-10-03 Alias added: GHSA-q4g7-pm99-9f7g
References
More Imagination Technologies Ddk vulnerabilities
- TI-2023-04574 GPU kernel implementations susceptible to memory leak CVSS 3.1MEDIUM 6.5
- TI-2026-13612 GPU DDK - Integer overflow in _PMRLogicalOffsetToPhysicalOffset CVSS 3.1CRITICAL 9.8
- TI-2025-12749 GPU DDK - libusc UAF via WebGPU shaders at MergeConsecutiveBarriersBP CVSS 3.1CRITICAL 9.8
- TI-2025-18845 GPU DDK - GPU Register value contents leaked from secure workloads to non-secure world CVSS 3.1CRITICAL 9.1
- TI-2026-17504 GPU DDK - libusc OOB write at ConvertSwitchToArrayLookupBP during WebGPU shader compilation CVSS 3.1CRITICAL 9.6
- TI-2026-17506 GPU DDK - libusc OOB write at TreeRemove during WebGPU shader compilation CVSS 3.1HIGH 7.7
Sources
- CVE-2026-7639 · CVE Program
- CVE-2026-7639 · NVD
- FIRST EPSS
- GHSA-q4g7-pm99-9f7g · GitHub Advisory Database · CC BY 4.0
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