CVE-2024-36080 — Westermo EDW-100 devices through 2024-05-03 have a hidden root user account with

Westermo EDW-100 devices through 2024-05-03 have a hidden root user account with a hardcoded password that cannot be changed. NOTE: this is a serial-to-Ethernet converter that should not be placed at the edge of the network.

01What is this vulnerability?

Westermo EDW-100 devices through 2024-05-03 have a hidden root user account with a hardcoded password that cannot be changed. NOTE: this is a serial-to-Ethernet converter that should not be placed at the edge of the network.

02Affected products

Vendor	Product	Versions
n	a / n/a	n/a

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection in your stack of choice:

Open in Sigma generator →

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2024-05-19T20:05:41.159Z
• Last modified: 2025-02-13T15:59:17.702Z

09References

• www.westermo.com — https://www.westermo.com/-/media/Files/Cyber-security/westermo_sa_EDW-100_24-05.…