CVE-2026-75894 Reachable assertion at ranap_handle_co_dt()
A reachable assertion in osmo-iuh allows remote attackers to cause a process crash and denial of service via a maliciously sized NAS-PDU.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2026-75894?
CVE-2026-75894 is a high-severity denial of service vulnerability in Osmocom osmo-iuh, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
In osmo-iuh from 0.1.0 through 1.8.0 a reachable assertion was found in the ranap_handle_co_dt() function via a arbitrarily sized NAS-PDU that leads to process crash and remote denial of service.
Weakness: CWE-617
Which versions are affected by CVE-2026-75894?
Linux distribution packages (1)
osmo-iuh openSUSE:Leap 16.0 | All versions | 1.5.1-bp160.2.1 |
How do I fix CVE-2026-75894?
Apply the vendor's patch.
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-2026-75894 being exploited?
There is no known exploitation of CVE-2026-75894 in the wild and no public exploit code.
Sources
Also known as DEBIAN-CVE-2026-75894, GHSA-g4v5-w6q6-j5cq, UBUNTU-CVE-2026-75894, openSUSE-SU-2026:21954-1.