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CVE-2026-74912— GPU DDK - Fix for CVE-2026-49746 prevents the mapping of graphics buffers > 4GB

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.

在已应用 CVE-2026-49746 安全漏洞修复的 GPU 系统上，图形缓冲区的映射范围受到限制，导致在尝试映射该范围之外的区域时出现错误。 当在 0GB 至 4GB 的缓冲区范围内映射 GPU 缓冲区页面时，会发生整数截断，从而引发错误并限制内核模式驱动程序的功能。

AI Predicted 5.5 Difficulty: Moderate
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I. Basic Information for CVE-2026-74912

Vulnerability Information
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Vulnerability Title
GPU DDK - Fix for CVE-2026-49746 prevents the mapping of graphics buffers > 4GB
Source: CVE Program / CVE List V5
Vulnerability Description
On GPU systems with the security vulnerability fix for CVE-2026-49746 applied, the mapping range of graphics buffers is limited which causes errors when the mapping outside of that range. Integer truncation caused when mapping GPU buffer pages in the buffer’s range 0GB - 4GB, produces error and limits the functionality of the kernel mode driver.
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
使用越界的指针偏移
Source: CVE Program / CVE List V5

Affected Products

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

II. Public POCs for CVE-2026-74912

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III. Intelligence Information for CVE-2026-74912

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News Coverage for CVE-2026-74912 (1)

Same Patch Batch · Imagination Technologies · 2026-10-30 · 8 CVEs total

CVE-2026-65584 GPU DDK - Stack Buffer Overflow via undersized UFO address array in DumpStalledContextInfo
CVE-2026-15466 GPU DDK - Write UAF due to a race condition caused by insufficient locking in PVRSRVRGXClo
CVE-2026-65586 GPU DDK - Write UAF due to missing cleanup reference for abort command submitted via PVRSR
CVE-2026-65587 GPU DDK - OOB write in CalculateNPOTTwiddleSparsePageMap via TEXTURE_BASE_LEVEL change
CVE-2026-74915 GPU DDK - OOB write in UntwiddlePOTSquare64bpp
CVE-2026-19199 GPU DDK - OOB write due to freelist size integer overflow in RGXCreateHWRTDataSet
CVE-2026-18629 GPU DDK - libusc.so NPD due to integer overflow at ConvertSwitchToArrayLookup during WebGP

IV. Related Vulnerabilities

Same product: Graphics DDK
Same vendor: Imagination Technologies
Same weakness: CWE-823