CVE-2026-23788 Memory corruption in Exynos 1280 firmware
A heap overflow in the Exynos DRM HDR driver allows attackers to cause kernel memory corruption and system crashes on affected Samsung mobile processors.
- 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-2026-23788?
CVE-2026-23788 is a medium-severity memory corruption 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, and 1380. A heap overflow in the Exynos DRM HDR driver (due to improper buffer size validation) leads to kernel memory corruption and a system crash.
Weakness: CWE-122
Which versions are affected by CVE-2026-23788?
How do I fix CVE-2026-23788?
No fix has been published for CVE-2026-23788 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2026-23788 being exploited?
There is no known exploitation of CVE-2026-23788 in the wild and no public exploit code.
Sources
Also known as GHSA-3hr9-ggc9-95w7.