CVE-2026-33956 Memory corruption in Exynos 1330 firmware
A malformed message to the camera test_msg sysfs entry causes an out-of-bounds write, leading to denial of service on Samsung Exynos 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-2026-33956?
CVE-2026-33956 is a low-severity memory corruption vulnerability in Samsung Exynos 1330 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 camera in Samsung Mobile Processor Exynos 1330, 1380, 1480, 2400, 1580, and 2500. Sending a malformed message to the test_msg sysfs entry causes an out-of-bounds write, leading to denial of service.
Weakness: CWE-787
Which versions are affected by CVE-2026-33956?
How do I fix CVE-2026-33956?
No fix has been published for CVE-2026-33956 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-2026-33956 being exploited?
There is no known exploitation of CVE-2026-33956 in the wild and no public exploit code.
Sources
Also known as GHSA-5gfj-g94w-9588.