# CVE-2025-6349: Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver…

Source: https://junglewise.ai/threats/cve-2025-6349-use-after-free-vulnerability-in-arm-ltd-valhall-gpu-kernel-driver  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-12-01  
License: CC BY 4.0 with a link back

CVE-2025-6349 · Severity: medium · CVSS 5.1 · Published 2025-12-01

Use After Free vulnerability in Arm Ltd Valhall GPU Kernel Driver, Arm Ltd Arm 5th Gen GPU Architecture Kernel Driver allows a local non-privileged user process to perform improper GPU memory processing operations to gain access to already freed memory.This issue affects Valhall GPU Kernel Driver: from r53p0 through r54p1; Arm 5th Gen GPU Architecture Kernel Driver: from r53p0 through r54p1.

Technologies: [Arm 5th Gen GPU Architecture Kernel Driver](https://junglewise.ai/threats/technologies/5th-gen-gpu-architecture-kernel-driver), [Arm Valhall GPU Kernel Driver](https://junglewise.ai/threats/technologies/valhall-gpu-kernel-driver). Vendors: [Arm](https://junglewise.ai/threats/vendors/arm).

## Quick answers

**Is CVE-2025-6349 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2025-6349 being exploited in the wild.

**How severe is CVE-2025-6349?** Medium severity, with a CVSS score of 5.1, published 1 December 2025.

**Which products and versions are affected?** Arm 5th Gen GPU Architecture Kernel Driver, Arm Valhall GPU Kernel Driver. The advisory does not name versions.

**Is there a fix for CVE-2025-6349?** 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.

**Am I affected by CVE-2025-6349?** Check whether you run Arm 5th Gen GPU Architecture Kernel Driver or Arm Valhall GPU Kernel Driver. 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.

## Affected products

- Arm 5th Gen GPU Architecture Kernel Driver
- Arm Valhall GPU Kernel Driver

## Related threats

- [Arm Bifrost, Valhall, and 5th Gen GPU Kernel Driver race condition](https://junglewise.ai/threats/cve-2026-9040-arm-bifrost-valhall-and-5th-gen-gpu-kernel-driver-race-condition)
- [Arm Bifrost GPU Kernel Driver use-after-free vulnerability](https://junglewise.ai/threats/cve-2026-7476-arm-bifrost-gpu-kernel-driver-use-after-free-vulnerability)
- [Arm Valhall GPU Kernel Driver use-after-free vulnerability](https://junglewise.ai/threats/cve-2026-5729-arm-valhall-gpu-kernel-driver-use-after-free-vulnerability)
- [Arm Bifrost/Valhall GPU Kernel Driver use-after-free](https://junglewise.ai/threats/cve-2026-12285-arm-bifrost-valhall-gpu-kernel-driver-use-after-free)
- [Arm Valhall GPU Kernel Driver information disclosure](https://junglewise.ai/threats/cve-2026-0860-arm-valhall-gpu-kernel-driver-information-disclosure)