CVE-2026-0611 Spacelabs Healthcare Sentinel 10.5.x < 11.6.0 Unauthenticated RCE via .NET Remoting
Unauthenticated attackers can achieve remote code execution by writing webshells via exposed .NET Remoting endpoints in Spacelabs Healthcare Sentinel.
- 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-2026-0611?
CVE-2026-0611 is a critical code injection vulnerability in Spacelabs Healthcare Sentinel, published on 2 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Spacelabs Healthcare Sentinel versions 10.5.x and higher and 11.x.x before 11.6.0 contain an unauthenticated remote code execution vulnerability through a deprecated .NET Remoting HTTP channel exposed on port 8989 that allows attackers to perform arbitrary file read and write operations by supplying valid .NET URI endpoints. Attackers can write ASPX webshells to the IIS wwwroot directory to achieve unauthenticated remote code execution on the system. Port 8989 is not exposed in a default Sentinel installation; exploitation requires that the .NET Remoting port has been explicitly made network-accessible through deliberate configuration or network policy changes.
Weakness: CWE-306
Which versions are affected by CVE-2026-0611?
How do I fix CVE-2026-0611?
No fix has been published for CVE-2026-0611 yet. Limit exposure of the affected software until one is available.
Upgrade, and never evaluate templates, expressions or code built from user input. More about Code injection.
Is CVE-2026-0611 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-0611 exists.
Sources
Also known as GHSA-344f-p6q5-rw6q.