Spacelabs Healthcare Sentinel 10.5.x < 11.6.0 Unauthenticated RCE via .NET Remoting
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- Present
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-306.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Spacelabs Healthcare | Sentinel | 10.5.0 to before 11.6.0 | 11.6.0 | Patch available | CNA |
- Sentinel VendorSpacelabs Healthcare Affected 10.5.0 to before 11.6.0 Fixed in 11.6.0 Patch available CNA
Remediation
- Fix · CNA Sentinel (Spacelabs Healthcare) Fixed in 11.6.0
Timeline
- 2026-10-02 Threatist record created from CVE-2026-0611
- 2026-10-03 Alias added: GHSA-344f-p6q5-rw6q
- 2026-10-06 EPSS moved to the 50th–90th percentile
References
Sources
- CVE-2026-0611 · CVE Program
- CVE-2026-0611 · NVD
- FIRST EPSS
- GHSA-344f-p6q5-rw6q · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences