CVE-2026-89202 Missing authorization in RUGGEDCOM CROSSBOW
An authenticated attacker with minimal privileges can disconnect other users' sessions, including administrators, causing a denial of service.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-89202?
CVE-2026-89202 is a high-severity missing authorization vulnerability in Siemens RUGGEDCOM CROSSBOW, published on 13 Oct 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A vulnerability has been identified in RUGGEDCOM CROSSBOW (All versions < V6.0). Affected devices do not properly perform authorization checks for device disconnection requests. This could allow an authenticated attacker with minimal privileges to disconnect active sessions of other users, including administrators, leading to a denial of service.
Weakness: CWE-639
Which versions are affected by CVE-2026-89202?
How do I fix CVE-2026-89202?
No fix has been published for CVE-2026-89202 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-89202 being exploited?
There is no known exploitation of CVE-2026-89202 in the wild and no public exploit code.
Sources
Also known as GHSA-93m5-29fc-fvm2.