CVE-2022-50803 — JM-DATA ONU JF511-TV version 1

JM-DATA ONU JF511-TV version 1.0.67 uses default credentials that allow attackers to gain unauthorized access to the device with administrative privileges.

01What is this vulnerability?

JM-DATA ONU JF511-TV version 1.0.67 uses default credentials that allow attackers to gain unauthorized access to the device with administrative privileges.

02Affected products

Vendor	Product	Versions
JM-DATA ONU	JF511	TV — 1.0.67, 1.0.62, 1.0.55

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: 2025-12-30T22:41:41.999Z
• Last modified: 2026-01-05T20:24:15.140Z

09References

• www.zeroscience.mk — https://www.zeroscience.mk/en/vulnerabilities/ZSL-2022-5708.php
• packetstormsecurity.com — https://packetstormsecurity.com/files/167487/
• cxsecurity.com — https://cxsecurity.com/issue/WLB-2022060058
• exchange.xforce.ibmcloud.com — https://exchange.xforce.ibmcloud.com/vulnerabilities/229344
• www.jm-data.com — https://www.jm-data.com/
• www.vulncheck.com — https://www.vulncheck.com/advisories/jm-data-onu-jf-tv-default-credentials-vulne…