How to Fix CVE-2026-40620: X3050 (Bundle Sibling)
By Sai Kiran Pandrala
Last verified: 2026-05-25
CVE-2026-40620 is a sibling vulnerability in the same vendor advisory as CVE-2026-25720. Applying the patched build named in the primary write-up closes this CVE as well.
| Severity | CVSS 9.3 - Critical |
|---|---|
| Actively exploited? | Not currently in CISA KEV |
| Affected | Same as the bundle - see CVE-2026-25720 |
| Fixed in | Same patched build as CVE-2026-25720 (See vendor advisory) |
| Type (CWE) | CWE-306: CWE-306 Missing authentication for critical function |
What's different about CVE-2026-40620?
A vulnerability in SenseLive X3050’s embedded management service allows full administrative control to be established without any form of authentication or authorization on the SenseLive config application. The service accepts management connections from any reachable host, enabling unrestricted modification of critical configuration parameters, operational modes, and device state through a vendor-supplied or compatible client.
The technical impact and remediation are identical to the primary CVE in the bundle. The same vendor patch closes both.
How to fix CVE-2026-40620
Apply the patched build per the primary write-up: How to Fix CVE-2026-25720.
The patch installation procedure, verification commands, and interim mitigations are documented there. Reusing one runbook keeps the rollout consistent across the bundle.
Frequently asked questions
Is CVE-2026-40620 fixed by the same patch as CVE-2026-25720?
Yes. CVE-2026-40620 ships in the same vendor advisory as CVE-2026-25720. Applying the patched build named in the primary write-up closes both.
What is the CVSS score for CVE-2026-40620?
The CVSS base score is 9.3 (Critical).
Is it being exploited?
It is not currently listed in CISA KEV.
References
- Official vendor advisory: https://www.cisa.gov/news-events/ics-advisories/icsa-26-111-12
- NVD entry: https://nvd.nist.gov/vuln/detail/CVE-2026-40620
- CISA KEV catalog: https://www.cisa.gov/known-exploited-vulnerabilities-catalog
- Primary write-up: How to Fix CVE-2026-25720
*Part of the X3050 bundle. Full procedure at CVE-2026-25720.*