Imagination Graphics DDK up to 26.1 RTM2 Kernel Mode Driver numeric truncation error

Summaryinfo

A vulnerability marked as very critical has been reported in Imagination Graphics DDK up to 1.18 RTM2/23.2 RTM2/24.2 RTM2/25.3 RTM/26.1 RTM2. The impacted element is an unknown function of the component Kernel Mode Driver. The manipulation leads to numeric truncation error. This vulnerability is documented as CVE-2026-74912. The attack needs to be performed locally. There is not any exploit available. It is suggested to upgrade the affected component.

Detailsinfo

A vulnerability was found in Imagination Graphics DDK up to 1.18 RTM2/23.2 RTM2/24.2 RTM2/25.3 RTM/26.1 RTM2. It has been rated as very critical. This issue affects an unknown code of the component Kernel Mode Driver. The manipulation with an unknown input leads to a numeric truncation error vulnerability. Using CWE to declare the problem leads to CWE-197. Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion. Impacted is confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at imaginationtech.com. The identification of this vulnerability is CVE-2026-74912 since 08/17/2026. The exploitation is known to be easy. Attacking locally is a requirement. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 10/30/2026).

Upgrading to version 26.2 RTM eliminates this vulnerability.

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Productinfo

Vendor

• Imagination

Name

• Graphics DDK

Version

• 1.18 RTM2
• 23.2 RTM2
• 24.2 RTM2
• 25.3 RTM
• 26.1 RTM2

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