CVE-2026-19199
Received Received - Intake

Improper System Call in GPU Driver Leading to Kernel Memory Disclosure

Publication date: 2026-10-30

Last updated on: 2026-10-30

Assigner: imaginationtech

Description
Software installed and run as a non-privileged user may conduct improper system calls to allocate physical memory. A 32-bit integer overflow in the KM driver during page-to-byte conversion of an allocation size can result in an undersized kernel buffer allocation. This may allow unallocated or previously allocated physical pages to be mapped into an attacker-controlled GPU MMU context, leading to disclosure of sensitive kernel data.

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Meta Information

Published
2026-10-30
Last Modified
2026-10-30
Generated
2026-10-30
AI Q&A
2026-10-30
EPSS Evaluated
N/A
NVD
CVE-2026-19199
EUVD
EUVD-2026-113488

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-190 The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

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Executive Summary

This vulnerability involves a 32-bit integer overflow in a graphics driver's memory allocation function. When a non-privileged user requests memory allocation, the driver miscalculates the required buffer size due to the overflow. This leads to an undersized kernel buffer being allocated, which can allow attacker-controlled access to unallocated or previously used physical memory pages.

Impact Analysis

An attacker could exploit this to read sensitive kernel data, potentially gaining unauthorized access to system information or bypassing security restrictions. This could lead to further attacks like privilege escalation or data leaks, depending on the compromised system's configuration.

Compliance Impact

This vulnerability could lead to disclosure of sensitive kernel data, which may result in unauthorized access to personal or health information. This could violate GDPR's data protection principles and HIPAA's security requirements for safeguarding protected health information.

Mitigation Strategies

Update the Imagination Technologies Graphics DDK to the latest patched version to address the 32-bit integer overflow in the KM driver. Ensure the software is not running as a non-privileged user to limit improper system calls.

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