CVE-2025-68271: critical vulnerability in OpenC3 cosmos
Unauthenticated Remote Code Execution in openc3-api
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 10epss 0.6%
OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. From 5.0.0 to 6.10.1, OpenC3 COSMOS contains a critical remote code execution vulnerability reachable through the JSON-RPC API. When a JSON-RPC request uses the string form of certain APIs, attacker-controlled parameter text is parsed into values using String#convert_to_value. For array-like inputs, convert_to_value executes eval(). Because the cmd code path parses the command string before calling authorize(), an unauthenticated attacker can trigger Ruby code execution even though the request ultimately fails authorization (401). This vulnerability is fixed in 6.10.2.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Affected products
OpenC3 · cosmosRelated CVEs — OpenC3 cosmos
In the same product, most dangerous first.
CVE-2024-46977MEDIUMOpenC3 COSMOS allows a path traversal via screen controller (`GHSL-2024-127`)EPSS 0.9%CVE-2026-77602CRITICALOpenC3 COSMOS: Authenticated remote code execution via the user-writable config overlay (table definitions, cmd/tlm definitions, and script suites)EPSS 0.7%CVE-2026-77601HIGHOpenC3 COSMOS: Authenticated OS command injection via the `pypi_url` settingEPSS 0.6%CVE-2024-43795MEDIUMOpenC3 COSMOS vulnerable to cross-site scripting in Login functionality (`GHSL-2024-128`)EPSS 0.5%CVE-2026-77394HIGHOpenC3 COSMOS: Stored, cross-user XSS via Telemetry screen BUTTON widgetEPSS 0.4%CVE-2024-47529MEDIUMOpenC3 COSMOS uses clear text storage of password/token (`GHSL-2024-129`)EPSS 0.4%