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CVE-2026-45197— GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet

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 1.18 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版本存在竞争条件问题漏洞，该漏洞源于TOCTOU问题，可能导致客户虚拟机内的内核软件读取或写入虚拟化GPU内存之外的数据。

AI Predicted 5.6 Difficulty: Moderate EPSS 0.09% · P0

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-2026-45197

Vulnerability Information
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Vulnerability Title
GPU DDK - TOCTOU affecting psFWMemContext->uiPageCatBaseRegSet
Source: CVE Program / CVE List V5
Vulnerability Description
Kernel software installed and running inside a Guest VM may post improper commands to the GPU Firmware to trigger a read and/or write data outside the Guest's virtualised GPU memory. The firmware uses data provided by the Guest VM to set up accesses to memory. It validated this before use, but a TOCTOU bug was present which allowed the earlier check results to be invalidated.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
检查时间与使用时间(TOCTOU)的竞争条件
Source: CVE Program / CVE List V5
Vulnerability Title
Imagination Technologies Graphics DDK 竞争条件问题漏洞
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 1.18 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版本存在竞争条件问题漏洞，该漏洞源于TOCTOU问题，可能导致客户虚拟机内的内核软件读取或写入虚拟化GPU内存之外的数据。
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-2026-45197

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III. Intelligence Information for CVE-2026-45197

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News Coverage for CVE-2026-45197 (1)

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-367