CVE-2025-59440 Denial of service in n/a
Improper handling of SIM card proactive commands in Samsung Exynos processors allows attackers to cause a Denial of Service.
- 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-2025-59440?
CVE-2025-59440 is a high-severity denial of service vulnerability in Samsung Exynos 1080 Firmware, published on 6 Apr 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 USIM in Samsung Mobile Processor, Wearable Processor, and Modem Exynos 980, 990, 850, 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, 9110, W920, W930, W1000, Modem 5123, Modem 5300, and Modem 5400. Improper handling of SIM card proactive commands leads to a Denial of Service.
Weakness: CWE-400
Which versions are affected by CVE-2025-59440?
It affects 20 products.
Products include Samsung Exynos 1080 Firmware, Samsung Exynos 1280 Firmware, Samsung Exynos 1330 Firmware, Samsung Exynos 1380 Firmware, Samsung Exynos 1480 Firmware, Samsung Exynos 1580 Firmware and 14 more.
How do I fix CVE-2025-59440?
No fix has been published for CVE-2025-59440 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-2025-59440 being exploited?
There is no known exploitation of CVE-2025-59440 in the wild and no public exploit code.
Other vulnerabilities in Samsung Exynos 1080 Firmware
Sources
Also known as GHSA-pp8m-48hh-xvpx.