CVE-2026-23515 — CRITICAL (9.9)

Q: How severe is CVE-2026-23515?

CVE-2026-23515 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.

Q: Is there a patch for CVE-2026-23515?

Check the references section above for vendor advisories and patch information. Affected products include: Signalk Signal K Server.

Vulnerability Description

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.

CVSS Score

9.9

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Affected Products

Vendor	Product	Versions
Signalk	Signal K Server	< 1.5.0

Related Weaknesses (CWE)

CWE-78

References

FAQ

What is CVE-2026-23515?

CVE-2026-23515 is a vulnerability with a CVSS score of 9.9 (CRITICAL). 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 s...

How severe is CVE-2026-23515?

CVE-2026-23515 has been rated CRITICAL with a CVSS base score of 9.9/10. This is considered a critical vulnerability requiring immediate attention.

Is there a patch for CVE-2026-23515?

Check the references section above for vendor advisories and patch information. Affected products include: Signalk Signal K Server.