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CVE-2026-7639— GPU DDK - Page UAF read in PMMETA_PROTECT heap memory

AI Predicted 7.8 Difficulty: Hard EPSS 0.12% · P2

Affected Version Matrix 6

VendorProductVersion RangeStatus
Imagination TechnologiesGraphics DDK1.18 RTM2affected
23.2 RTM2affected
24.2 RTM2affected
25.1 RTM2≤ 25.3 RTMaffected
26.1 RTM1affected
26.1 RTM2unaffected
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I. Basic Information for CVE-2026-7639

Vulnerability Information
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Vulnerability Title
GPU DDK - Page UAF read in PMMETA_PROTECT heap memory
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
清理环节不完整
Source: NVD (National Vulnerability Database)
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 1.18 RTM2版本、23.2 RTM2版本、24.2 RTM2版本、25.3 RTM及之前的25.1 RTM2版本、26.1 RTM1版本存在资源管理错误漏洞，该漏洞源于GPU系统调用不当导致释放后重用，恶意代码触发MMU映射逻辑中的故障路径可能导致内部驱动状态清理不完整，从而允
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

VendorProductAffected VersionsCPESubscribe
Imagination TechnologiesGraphics DDK 1.18 RTM2 -

II. Public POCs for CVE-2026-7639

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III. Intelligence Information for CVE-2026-7639

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News Coverage for CVE-2026-7639 (1)

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

CVE-2026-41154GPU DDK - Incorrect Index Calculation in CMA Cleanup Path of AllocOSPages_Sparse
CVE-2026-45203GPU DDK - rgxfw_hwperf_ufo() re-reads psCmdHeader->ui32CmdSize after initial check, TOCTOU
CVE-2026-45196GPU DDK - Arbitrary GPU register write in rgxfw_hwperf_hw due to unsanitized pointers from
CVE-2026-34196GPU DDK - UAF read and/or write of arbitrary physical memory due to integer truncation in

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-459

V. Comments for CVE-2026-7639

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