CVE-2026-23515
RCE - Command Injection in Signal K set-system-time plugin
HIGH 8.8EPSS 4.6%
Signal K Server is a server application that runs on a central hub in a boat. Prior to 1.5.0, a command injection vulnerability allows authenticated users with write permissions to execute arbitrary shell commands on the Signal K server when the set-system-time plugin is enabled. Unauthenticated users can also exploit this vulnerability if security is disabled on the Signal K server. This occurs due to unsafe construction of shell commands when processing navigation.datetime values received via WebSocket delta messages. This vulnerability is fixed in 1.5.0.
- Affected
- SignalK · signalk-server
- CVSS v3.1 NVD
- 8.8 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS v3.1 GITHUB
- 9.9 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H - EPSS
- 4.59% chance of exploitation in the next 30 days, 92nd percentile
- Published
- 2026-02-02
- Updated
- 2026-02-03
Proof-of-concept exploits (1)
Security advisories
- SignalK/signalk-server/security/advisories/GHSA-p8gp-2w28-mhwg
- SignalK/set-system-time/commit/75b11eae2de528bf89ede3fb1f7ed057ddbb4d24