CVE-2026-18629 Details
Description
A web page that contains unusual GPU shader code is loaded into the GPU compiler process and can lead memory allocation failure. If the allocation failure is not properly handled, the compiler may dereference a NULL pointer at a controlled offset, resulting in a crash of the compiler process. On certain platforms, when the compiler process has system privileges this could lead to crashes or enable further exploits on the device. The weakness results from performing arithmetic operations on values derived from the shader program without properly preventing integer overflow. The overflow can cause incorrect memory size calculations, leading to memory allocation failures and subsequent invalid program behaviour. Integer overflow can produce unexpected values that affect memory allocation and other security-relevant operations.
An integer overflow vulnerability has been identified in the GPU shader compiler process of Imagination Technologies' GPU driver. This vulnerability arises from improper arithmetic operations on values derived from shader programs, allowing for memory size calculations to be manipulated. As a result, the compiler may experience memory allocation failures, which, if not properly managed, can lead to dereferencing a NULL pointer at a controlled offset. This flaw causes the compiler process to crash. On certain platforms, where the compiler process holds system privileges, such crashes could be exploited further, potentially leading to unauthorized actions on the device.
Users can update to the latest version of the Imagination Technologies GPU driver, which includes a patch for this vulnerability by handling unusual shader code safely during compilation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 30, 2026CISA-ADP
Assessed Nov 5, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.imaginationtech.com/gpu-driver-vulnerabilities/ | imaginationtech | AdvisoryBundleRemedyVendor |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | imaginationtech |
Affected Products
| Product | Versions |
|---|---|
| Imagination Technologies GPU DDK | <= 25.2 RTM >= 24.2 RTM1, <= 25.2 RTM >= 24.1 RTM1, <= 25.2 RTM <= 25.3 RTM >= 23.2 RTM2, <= 25.1 RTM >= 25.1 RTM1, <= 25.3 RTM <= 26.1 RTM1 |
CPE
Remediation
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Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 5, 2026 | CVE Modified | CISA-ADP |
| Oct 30, 2026 | New CVE Received | imaginationtech |