Signal is active with 2 mentions in latest observed window
Recommended action window: Monitor and triage in normal cycle
NVD description
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.
Priority
LOW
Exploitation
NONE
PoC
YES
Patch
AVAILABLE
Momentum
NONE
If you run products in this scope, you should treat this CVE as relevant to your environment.
1 version affected across 1 product
CVE-2026-42084 Unauthenticated Password Change via Session Token in OpenC3 COSMOS https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-42084
Post summary
The text only announces the CVE identifier and provides a link, without further details or actionable information.
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 Op… https://www.cve.org/CVERecord?id=CVE-2026-42084
Post summary
CVE-2026-42084 affects OpenC3 COSMOS embedded systems prior to versions 6.10.5 and 7.0.0-rc3; the implicated versions are now patched.
3 of 3 entries
| Part | Vendor | Product | Version | Target SW | Target HW |
|---|---|---|---|---|---|
| App | openc3 | cosmos | - | - | - |
| App | openc3 | cosmos | 7.0.0 | - | - |
| App | openc3 | cosmos | 7.0.0 | - | - |