CVE-2025-59439 Denial of service in n/a
Attackers can cause a denial of service on Samsung Exynos devices by sending malformed NAS Registration messages due to improper exception handling.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2025-59439?
CVE-2025-59439 is a high-severity denial of service vulnerability in Samsung Exynos 1080 Firmware, published on 3 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in Samsung Mobile Processor, Wearable Processor and Modem Exynos 980, 990, 850, 1080, 9110, W920, W930, W1000 and Modem 5123. Incorrect handling of NAS Registration messages leads to a Denial of Service because of Improper Handling of Exceptional Conditions.
Weakness: CWE-400
Which versions are affected by CVE-2025-59439?
It affects 9 products.
Products include Samsung Exynos 1080 Firmware, Samsung Exynos 850 Firmware, Samsung Exynos 9110 Firmware, Samsung Exynos 980 Firmware, Samsung Exynos 990 Firmware, Samsung Exynos Modem 5123 Firmware and 3 more.
How do I fix CVE-2025-59439?
No fix has been published for CVE-2025-59439 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2025-59439 being exploited?
There is no known exploitation of CVE-2025-59439 in the wild and no public exploit code.
Other vulnerabilities in Samsung Exynos 1080 Firmware
Sources
Also known as GHSA-pgj6-pfrx-wvwj.