CVE-2023-23324 — Zumtobel Netlink CCD Onboard 3

Zumtobel Netlink CCD Onboard 3.74 - Firmware 3.80 was discovered to contain hardcoded credentials for the Administrator account.

01What is this vulnerability?

Zumtobel Netlink CCD Onboard 3.74 - Firmware 3.80 was discovered to contain hardcoded credentials for the Administrator account.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

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

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

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: 2023-11-29T01:15:07.127
• Last modified: 2026-07-09T01:18:03.977

09References

• yoroi.company — https://yoroi.company/en/research/cve-advisory-partial-disclosure-zumtobel-multi…
• yoroi.company — https://yoroi.company/en/research/cve-advisory-partial-disclosure-zumtobel-multi…