# CVE-2026-68985: Samsung Exynos NPU driver out-of-bounds write in ioctl handler

Source: https://junglewise.ai/threats/cve-2026-68985-in-the-samsung-exynos-npu-driver-improper-validation-of-user  
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-2026-68985 · Severity: info · Published 2026-11-05

Samsung's Exynos NPU driver, used in processors for mobile and compute devices, contains an input validation flaw in its ioctl handler that can be exploited to write data outside allocated memory boundaries. An attacker with local access to the device could trigger this vulnerability to crash the system or potentially gain elevated privileges.

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

## Quick answers

**Is CVE-2026-68985 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-68985 being exploited in the wild.

**How severe is CVE-2026-68985?** Informational severity, published 5 November 2026.

**Which products and versions are affected?** Samsung Exynos NPU driver.

**Is there a fix for CVE-2026-68985?** 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-2026-68985 attacked?** It is attacked with local access, in device firmware.

**Am I affected by CVE-2026-68985?** Check whether you run Samsung Exynos NPU 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.

## Technical details

The vulnerability is an out-of-bounds write in the Exynos NPU driver's ioctl handler due to improper validation of user-supplied input. The attack requires local access to invoke the affected ioctl, allowing an attacker to corrupt kernel memory adjacent to the target buffer, potentially escalating privileges or causing denial of service.

## Affected products

- Samsung Exynos NPU driver

## 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 Exynos NPU driver out-of-bounds write in ioctl handler](https://junglewise.ai/threats/cve-2026-69025-in-the-exynos-npu-driver-improper-validation-of-user-input-in-the)