CVE-2026-23792 Denial of service in Exynos 1080 firmware
Attackers can crash the baseband processor by sending unauthenticated downlink RRC Setup messages, affecting Samsung Exynos mobile processors and 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-2026-23792?
CVE-2026-23792 is a medium-severity denial of service vulnerability in Samsung Exynos 1080 firmware, published on 14 Sep 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 NR RRC in Samsung Mobile Processor and Modem Exynos 1080, 2100, 1280, 2200, 1330, 1380, 1480, 2400, 1580, 2500, W1000, Modem 5300, Modem 5400, and Modem 5410. Incorrect handling of unauthenticated downlink RRC Setup messages can cause the baseband to crash.
Weakness: CWE-346
Which versions are affected by CVE-2026-23792?
How do I fix CVE-2026-23792?
No fix has been published for CVE-2026-23792 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-2026-23792 being exploited?
There is no known exploitation of CVE-2026-23792 in the wild and no public exploit code.
Sources
Also known as GHSA-4x93-h89g-4687.