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CVE-2026-40425

MacGregor Voyage Data Recorder (VDR) G4e Files or Directories Accessible to External Parties

MEDIUM
4.9
CVSS Score
Published: May 29, 2026 at 05:47 PM UTC
Updated: July 20, 2026 at 08:28 PM UTC
3 products affected across 2 vendorsInterschalt Vdr G4E FirmwareInterschalt Vdr G4EInterschalt Vdr G4E

Using MacGregor Voyage Data Recorder (VDR) G4e by Danelec?

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Severity
MEDIUM4.9
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

The administrator account for the Danelec MacGregor Voyage Data Recorder web interface can directly edit sensitive files related to authentication, potentially changing the root password.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Interschalt Vdr G4E Firmware· Macgregor
95%
v < 5.250
Affected range stops below 5.250, so it looks safe — our inference, not a vendor statement
macgregor-interschalt-vdr-g4e (same device)
Interschalt Vdr G4E· Danelec
60%
v < 5.250
Affected range stops below 5.250, so it looks safe — our inference, not a vendor statement
Interschalt Vdr G4E· Macgregordevice
80%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (3)

Product
Source: cverecord
https://www.danelec.com/contact
Third Party AdvisoryUS Government Resource
Source: cverecord
https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-01
Issue Tracking
Source: cverecord
https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-148-01.json

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.9MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-552

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