CVE-2025-68272
Published: 01 January 2026
Summary
CVE-2025-68272 is a high-severity Uncontrolled Resource Consumption (CWE-400) vulnerability in Signalk Signal K Server. Its CVSS base score is 7.5 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Application or System Exploitation (T1499.004); ranked at the 27.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 SC-5 (Denial-of-service Protection) and SC-6 (Resource Availability).
Deeper analysis
CVE-2025-68272 is a Denial of Service (DoS) vulnerability affecting Signal K Server, a server application that runs on a central hub in a boat, in versions prior to 2.19.0. The issue stems from unbounded in-memory storage of request objects at the access request endpoint (/signalk/v1/access/requests), leading to a "JavaScript heap out of memory" error when flooded with requests. It is rated with a CVSS v3.1 base score of 7.5 (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H) and is associated with CWEs-400 (Uncontrolled Resource Consumption) and CWE-770 (Allocation of Resources Without Limits or Throttling).
An unauthenticated attacker with network access to the Signal K Server can exploit this vulnerability by flooding the /signalk/v1/access/requests endpoint with requests. This requires low complexity and no user interaction or privileges, allowing remote exploitation that results in server crashes and high availability impact, effectively denying service to legitimate users.
The Signal K Server security advisory (GHSA-7rqc-ff8m-7j23) and release notes for version 2.19.0 detail the fix, recommending immediate upgrade to v2.19.0 or later to mitigate the issue by addressing the unbounded storage of requests.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2025-206139
Vulnerability details
Signal K Server is a server application that runs on a central hub in a boat. A Denial of Service (DoS) vulnerability in versions prior to 2.19.0 allows an unauthenticated attacker to crash the SignalK Server by flooding the access…
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request endpoint (`/signalk/v1/access/requests`). This causes a "JavaScript heap out of memory" error due to unbounded in-memory storage of request objects. Version 2.19.0 fixes the issue.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
The vulnerability enables remote flooding of an application endpoint to trigger unbounded memory consumption and crash, directly mapping to Endpoint Denial of Service via Application or System Exploitation.
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly protects against DoS attacks by limiting effects of flooding the access request endpoint with unbounded requests.
Enforces resource allocation policies to prevent unbounded in-memory storage of request objects leading to heap exhaustion.
Remediates the specific flaw through timely patching to version 2.19.0 or later, which bounds request storage.