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CVE-2026-34196— GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem

Quick assessment

Affected
Imagination Technologies Graphics DDK
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Imagination Technologies Graphics DDK是Imagination Technologies的图形驱动程序开发套件。 Imagination Technologies Graphics DDK存在资源管理错误漏洞，该漏洞源于非特权用户运行软件时调用不当的GPU系统调用导致整数溢出，将两个GPU虚拟地址映射到同一物理地址，其中一个虚拟映射随物理页释放后，通过第二个映射可进行读取/写入释放后重用。以下版本受到影响：1.18 RTM2版本、23.2 RTM2版本、24.2 RTM

AI Predicted 7.8 Difficulty: Hard EPSS 0.17% · P6

Affected Version Matrix 6

VendorProduct Version RangeStatus
Imagination Technologies Graphics DDK 1.18 RTM2 affected
23.2 RTM2 affected
24.2 RTM2 affected
25.1 RTM2≤ 25.3 RTM affected
26.1 RTM1 affected
26.1 RTM2 unaffected
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I. Basic Information for CVE-2026-34196

Vulnerability Information
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Vulnerability Title
GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in PMRDevPhysAddrOSMem
Source: CVE Program / CVE List V5
Vulnerability Description
Software installed and run as a non-privileged user may conduct improper GPU system calls to cause an integer overflow and map two GPU virtual addresses to the same physical address. One of these virutal mappings can be freed along with the physical page, allowing for a read/write UAF via the second mapping The second virtual mapping references a physical address that has been freed after the first virtual mapping has been freed. This allows the physical memory to be allocated (for example) by another process and read/written to.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
释放后使用
Source: CVE Program / CVE List V5
Vulnerability Title
Imagination Technologies Graphics DDK 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Imagination Technologies Graphics DDK是Imagination Technologies的图形驱动程序开发套件。 Imagination Technologies Graphics DDK存在资源管理错误漏洞，该漏洞源于非特权用户运行软件时调用不当的GPU系统调用导致整数溢出，将两个GPU虚拟地址映射到同一物理地址，其中一个虚拟映射随物理页释放后，通过第二个映射可进行读取/写入释放后重用。以下版本受到影响：1.18 RTM2版本、23.2 RTM2版本、24.2 RTM
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Imagination Technologies Graphics DDK 1.18 RTM2 -

II. Public POCs for CVE-2026-34196

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III. Intelligence Information for CVE-2026-34196

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News Coverage for CVE-2026-34196 (1)

Same Patch Batch · Imagination Technologies · 2026-07-10 · 5 CVEs total

CVE-2026-41154 GPU DDK - Incorrect Index Calculation in CMA Cleanup Path of AllocOSPages_Sparse
CVE-2026-45203 GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSize after initial check, TOCTOU
CVE-2026-45196 GPU DDK - Arbitrary GPU register write in rgxfw_hwperf_hw due to unsanitized pointers from
CVE-2026-7639 GPU DDK - Page UAF read in PMMETA_PROTECT heap memory

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-416

V. Comments for CVE-2026-34196

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