# CVE-2026-69066: Samsung GPU driver memory corruption in VMID validation

Source: https://junglewise.ai/threats/cve-2026-69066-memory-corruption-in-gpu-driver-due-to-improper-validation-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-11-05. Updated: 2026-11-05  
License: CC BY 4.0 with a link back

CVE-2026-69066 · Severity: info · Published 2026-11-05

A memory corruption vulnerability exists in Samsung's GPU driver due to improper validation of VMID (Virtual Machine ID) reservation. An attacker with local access to the GPU could potentially trigger memory corruption, leading to denial of service or potentially code execution on the GPU subsystem. This affects devices running affected Samsung GPU drivers.

Vendors: [Samsung](https://junglewise.ai/threats/vendors/samsung).

## Quick answers

**Is CVE-2026-69066 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-69066 being exploited in the wild.

**How severe is CVE-2026-69066?** Informational severity, published 5 November 2026.

**Which products and versions are affected?** Samsung GPU driver <UNKNOWN>.

**Is there a fix for CVE-2026-69066?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-69066 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-69066?** Check whether you run Samsung GPU driver at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The vulnerability is a memory corruption flaw resulting from improper validation of VMID reservation in the GPU driver. It is accessible via local attack vector and requires no special privileges beyond GPU access. The flaw could allow an attacker to corrupt GPU memory, potentially gaining execution on the GPU processor or causing system instability.

## Affected products

- Samsung GPU driver <UNKNOWN>

## Timeline

- 2026-11-05: disclosed

## References

- [https://semiconductor.samsung.com/support/quality-support/product-security-updates/](https://semiconductor.samsung.com/support/quality-support/product-security-updates/)

## Related threats

- [Samsung GPU driver reference count handling memory corruption](https://junglewise.ai/threats/cve-2026-69044-in-the-samsung-gpu-driver-improper-reference-count-handling)