What is CVE-2025-68271?

CVE-2025-68271 is a critical-severity vulnerability in Openc3 Cosmos, classified under Eval Injection. CVSS score: 10.0/10. Published 2026-01-13.

How severe is CVE-2025-68271?

Critical severity. CVSS v3 base score is 10.0 out of 10.

RCE in Openc3 Cosmos

CVE-2025-68271

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-…

EPSS: 0.004 (60.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 10.0 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Openc3 Cosmos — versions >= 5.0.0, < 6.10.2

Weakness classification (CWE)

CWE-95 — Eval Injection

References

https://github.com/OpenC3/cosmos/security/advisories/GHSA-w757-4qv9-mghp (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2025-68271?: CVE-2025-68271 is a critical-severity vulnerability in Openc3 Cosmos, classified under Eval Injection. CVSS score: 10.0/10. Published 2026-01-13.
How severe is CVE-2025-68271?: Critical severity. CVSS v3 base score is 10.0 out of 10.