CVE-2025-62818 Memory corruption in n/a
Out-of-bounds write in Samsung Exynos modem firmware allows attackers to execute arbitrary code or escalate privileges via malicious SMS packets.
- 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-2025-62818?
CVE-2025-62818 is a critical memory corruption vulnerability in Samsung Exynos 1080 Firmware, published on 7 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 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. An out-of-bounds write occurs due to a mismatch between the TP-UDHI and UDL values when processing an SMS TP-UD packet.
Weakness: CWE-787
Which versions are affected by CVE-2025-62818?
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-2025-62818?
No fix has been published for CVE-2025-62818 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-2025-62818 being exploited?
There is no known exploitation of CVE-2025-62818 in the wild and no public exploit code.
Other vulnerabilities in Samsung Exynos 1080 Firmware
Sources
Also known as GHSA-6279-562x-78g7.