CVE-2025-53966 Memory corruption in n/a
A buffer overflow in Exynos processors allows attackers to execute arbitrary code or escalate privileges via malformed IOCTL messages.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-53966?
CVE-2025-53966 is a high-severity memory corruption vulnerability in Samsung Exynos 1380 Firmware, published on 5 Jan 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 Samsung Mobile Processor Exynos 1380, 1480, 2400, and 1580. Incorrect Handling of the NL80211 vendor command leads to a buffer overflow during handling of an IOCTL message.
Weakness: CWE-120
Which versions are affected by CVE-2025-53966?
It affects 4 products.
Products include Samsung Exynos 1380 Firmware, Samsung Exynos 1480 Firmware, Samsung Exynos 1580 Firmware, Samsung Exynos 2400 Firmware.
How do I fix CVE-2025-53966?
No fix has been published for CVE-2025-53966 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-2025-53966 being exploited?
There is no known exploitation of CVE-2025-53966 in the wild and no public exploit code.
Other vulnerabilities in Samsung Exynos 1380 Firmware
Sources
Also known as GHSA-cx4j-69qv-4cwj.