CVE catalog

CVE-2026-42084

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and 7.0.0-rc3, the OpenC3 password change functionality

[CVE catalog]

Severity
High · CVSS 8.1CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
Published
Source
[NVD] · [CVE record]
EPSS
0.30% · Oct 25, 2026

OpenC3 COSMOS provides the functionality needed to send commands to and receive data from one or more embedded systems. Prior to versions 6.10.5 and 7.0.0-rc3, the OpenC3 password change functionality allows a user to change their password without providing the old password, by accepting a valid session token instead. In assumed breach scenarios, this behaviour can be exploited by an attacker who has already obtained a valid session token, to gain persistence in hijacked account (including admin) and prevent legitimate users from accessing the account. This issue has been patched in versions 6.10.5 and 7.0.0-rc3.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

DistributionPackageReleaseVersionStatus
CpecosmosNot reported6.10.5fixed
CpecosmosNot reportedNot reportedunknown
CpecosmosNot reportedNot reportedunknown

Fixed-version evidence

DistributionPackageTypeReleaseFixed versionUrgencyOriginBugs
CpecosmoscpeNot reported6.10.5Not reportedNot reportedNot reported

OpenFactory catalog packages

No matching packages in this catalog.

Observed:

References

[FIRST EPSS] · [National Vulnerability Database (NVD)]