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CVE-2026-45198— GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted

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公司的一款图形驱动程序开发套件。 Imagination Technologies Graphics DDK 1.17 RTM2版本、1.18 RTM2版本、23.2 RTM2版本、24.2 RTM2版本、25.1 RTM2至25.3 RTM版本和26.1 RTM1版本存在缓冲区错误漏洞，该漏洞源于使用来自非安全内存的指针，可能导致具有REE内核控制权的攻击者修改指针值，破坏GPU固

AI Predicted 7.5 Difficulty: Moderate EPSS 0.18% · P6

Affected Version Matrix 7

VendorProduct Version RangeStatus
Imagination Technologies Graphics DDK 1.17 RTM2 affected
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-2026-45198

Vulnerability Information
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Vulnerability Title
GPU DDK - RGXFWIF_SYSINIT::sCorememDataStore is untrusted
Source: CVE Program / CVE List V5
Vulnerability Description
Kernel software from a non-secure operating system on a platform with Trusted Execution Environment support, may cause GPU Firmware to boot up using data from non-secure memory. The GPU thread of control (Firmware) uses a pointer from non-secure memory belonging to the Rich Execution Environment (REE) when saving or retrieving internal data between the tightly coupled private memory to main memory. An attacker with control over the REE kernel may modify the pointer value, corrupting the data used by the GPU Firmware.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
非可信指针解引用
Source: CVE Program / CVE List V5
Vulnerability Title
Imagination Technologies Graphics DDK 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Imagination Technologies Graphics DDK是Imagination Technologies公司的一款图形驱动程序开发套件。 Imagination Technologies Graphics DDK 1.17 RTM2版本、1.18 RTM2版本、23.2 RTM2版本、24.2 RTM2版本、25.1 RTM2至25.3 RTM版本和26.1 RTM1版本存在缓冲区错误漏洞，该漏洞源于使用来自非安全内存的指针，可能导致具有REE内核控制权的攻击者修改指针值，破坏GPU固
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 1.17 RTM2 -

II. Public POCs for CVE-2026-45198

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III. Intelligence Information for CVE-2026-45198

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News Coverage for CVE-2026-45198 (1)

Same Patch Batch · Imagination Technologies · 2026-08-07 · 3 CVEs total

CVE-2026-45204 GPU DDK - Out of bounds memory access and kernel NULL pointer dereference in DmaTransfer w
CVE-2026-49746 GPU DDK - Dimension Mismatch and Integer Truncation in PMRDevPhysAddrOSMem

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-822

V. Comments for CVE-2026-45198

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