ProGauge MagLink LX 4: Use of Hard-coded Cryptographic Key
CVE-2025-54807 is a critical-severity use of hard-coded cryptographic key vulnerability in ProGauge MagLink LX 4 from Dover Fueling Solutions, with a CVSS 3.1 base score of 9.8 out of 10. It can be exploited remotely over the network by an unauthenticated attacker, without any action from a user. The record lists version 4.20.3 as the first without the flaw, so updating ProGauge MagLink LX 4 to that release or later removes the exposure. There is no confirmed exploitation so far. EPSS estimates a 0.75% chance of exploitation within 30 days, higher than 55% of scored CVEs.
Critical severity: a successful attack would have severe impact.
What to do
- Update ProGauge MagLink LX 4 to 4.20.3 or a later version.
- Update ProGauge MagLink LX Plus to 4.20.3 or a later version.
- Update ProGauge MagLink LX Ultimate to 5.20.3 or a later version.
- Until you can update, restrict network access to the affected service so it is not reachable from untrusted networks.
Affected products and versions
| Vendor | Product | Affected versions | Fixed in |
|---|---|---|---|
| Dover Fueling Solutions | ProGauge MagLink LX 4 | before 4.20.3 | 4.20.3 |
| Dover Fueling Solutions | ProGauge MagLink LX Plus | before 4.20.3 | 4.20.3 |
| Dover Fueling Solutions | ProGauge MagLink LX Ultimate | before 5.20.3 | 5.20.3 |
Version data comes from the organisation that assigned the CVE. Confirm against the vendor advisory before deciding you are unaffected.
How the severity score breaks down
- Attack vector
- NetworkCan be exploited remotely over a network, including the internet.
- Attack complexity
- LowNo special conditions are needed; the attack works reliably.
- Privileges required
- NoneNo account or login is needed.
- User interaction
- NoneNo action by a victim is required.
- Scope
- UnchangedImpact stays within the vulnerable component.
- Confidentiality
- HighAll data handled by the component can be read.
- Integrity
- HighData or code can be modified at will.
- Availability
- HighThe component can be taken down completely.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. Scored by CNA (hq.dhs.gov).
| Scoring system | Score | Severity | Scored by |
|---|---|---|---|
| CVSS 4.0 | 9.3 | Critical | CNA (hq.dhs.gov) |
| CVSS 3.1 | 9.8 | Critical | CNA (hq.dhs.gov) |
Official description
The secret used for validating authentication tokens is hardcoded in device firmware for affected versions. An attacker who obtains the signing key can bypass authentication, gaining complete access to the system.
Source: the CVE record as published by its numbering authority, via NVD and CVE.org.
The underlying weakness: Use of Hard-coded Cryptographic Key
The product uses a hard-coded, unchangeable cryptographic key.
How developers prevent this class of flaw
- Prevention schemes mirror that of hard-coded password storage.
More Use of Hard-coded Cryptographic Key vulnerabilities (CWE-321)
Timeline
- CVE record published.
- CISA published its SSVC assessment (exploitation: none, automatable: yes, technical impact: total).
- Record last changed materially (score, affected products, status or references).
References
Other references
Other vulnerabilities in ProGauge MagLink LX 4
- 8.2 High severity
- 9.8 Critical severity
- 9.8 Critical severity
Recent Use of Hard-coded Cryptographic Key vulnerabilities
- 7.4 High severity
- 9.8 Critical severity
- 9.8 Critical severity
- 8.1 High severity
- 7.3 High severity
- 7.7 High severity
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