CVE-2025-26780 Denial of service in n/a
A missing length check in the PDCP packet processing allows attackers to cause a Denial of Service on Samsung Exynos modems.
- 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-2025-26780?
CVE-2025-26780 is a high-severity denial of service vulnerability in Samsung Exynos 2400 Firmware, published on 7 Jul 2025. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
An issue was discovered in L2 in Samsung Mobile Processor and Modem Exynos 2400 and Modem 5400. The lack of a length check leads to a Denial of Service via a malformed PDCP packet.
Weakness: CWE-20
Which versions are affected by CVE-2025-26780?
It affects 2 products.
Products include Samsung Exynos 2400 Firmware, Samsung Modem 5400 Firmware.
How do I fix CVE-2025-26780?
No fix has been published for CVE-2025-26780 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-2025-26780 being exploited?
There is no known exploitation of CVE-2025-26780 in the wild and no public exploit code.
Sources
Also known as GHSA-mm48-9h4m-548r.