CVE-2026-23786 Race condition in Exynos 1280 firmware
A TOCTOU race condition in the Exynos DRM HDR Driver causes a heap overflow and kernel crash, impacting device stability.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-23786?
CVE-2026-23786 is a low-severity vulnerability in Samsung Exynos 1280 firmware, published on 14 Sep 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
An issue was discovered in DPU in Samsung Mobile Processor Exynos 1280, 2200, 1380, 1480, 2400, 1580, 2500, 1680, and 2600. A TOCTOU race condition in the Exynos DRM HDR Driver leads to a heap overflow, causing a kernel crash.
Weakness: CWE-367
Which versions are affected by CVE-2026-23786?
How do I fix CVE-2026-23786?
No fix has been published for CVE-2026-23786 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-23786 being exploited?
There is no known exploitation of CVE-2026-23786 in the wild and no public exploit code.
Sources
Also known as GHSA-qwrw-gwq4-5cwr.