CVE-2026-42951: An authenticated user can download a backup of the Danelec MacGregor Voyage Data Recorder device which inclu

Q: How do I fix CVE-2026-42951?

interschalt vdr g4e firmware: upgrade to 5.250. Exact commands for each OS are on this page.

Q: Is CVE-2026-42951 being exploited?

CVE-2026-42951 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-42951 affect?

CVE-2026-42951 affects interschalt vdr g4e firmware. Severity is medium (CVSS 5.4). An authenticated user can download a backup of the Danelec MacGregor Voyage Data Recorder device which includes account data and password hashes.

Q: How urgent is CVE-2026-42951?

Priority 20/100. No elevated risk signals yet.

Routine

MEDIUM 5.4UPGRADE

CVE-2026-42951 is a medium-severity flaw (CVSS 5.4) affecting interschalt vdr g4e firmware. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

An authenticated user can download a backup of the Danelec MacGregor Voyage Data Recorder device which includes account data and password hashes.

Why this priority

No elevated risk signals yet

A fixed release or distro patch exists.

Risk facts

CVSS score	5.4 (Medium)
Attack vector	Adjacent network
Attack complexity	High
Privileges needed	Low
User interaction	None
EPSS exploit chance	0.2% (top 94%)
CISA exploited list	No
Weakness	CWE-522
Published	2026-05-29
Last modified	2026-07-21

Publisher (CNA): ICS-CERT · Vendor: macgregor

Last updated 2026-07-21 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-05-29 19:16 UTCPublished CVE record published
2026-07-21 18:10 UTCUpdated Record last modified

macgregor interschalt vdr g4e firmware UPGRADE

Affected: < 5.250

Fixed in: 5.250

Safe to downgrade to: no unaffected older release

Check your OS release

cat /etc/os-release; uname -r

Debian / Ubuntu

sudo apt update && sudo apt full-upgrade

RHEL / Amazon Linux / Fedora

sudo dnf upgrade --refresh

Windows

Install the latest cumulative update from Windows Update

If no patch exists yet

OS downgrades are not safe. Apply the vendor mitigation from the advisory and restrict exposure.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2026-42951?

interschalt vdr g4e firmware: upgrade to 5.250. Exact commands for each OS are on this page.

Is CVE-2026-42951 being exploited?

CVE-2026-42951 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2026-42951 affect?

CVE-2026-42951 affects interschalt vdr g4e firmware. Severity is medium (CVSS 5.4). An authenticated user can download a backup of the Danelec MacGregor Voyage Data Recorder device which includes account data and password hashes.

How urgent is CVE-2026-42951?

Priority 20/100. No elevated risk signals yet.

Related CVEs

CVE-2026-44611 MEDIUM 5.4 UPGRADE Danelec MacGregor Voyage Data Recorder passwords are stored with a hashing method which limits password length
CVE-2026-42929 HIGH 8.3 UPGRADE Danelec MacGregor Voyage Data Recorder includes default accounts with hard-coded credentials.
CVE-2026-42941 HIGH 8.3 UPGRADE The Danelec MacGregor Voyage Data Recorder device includes a default username and password, with no enforced
CVE-2026-40425 MEDIUM 5.7 UPGRADE The administrator account for the Danelec MacGregor Voyage Data Recorder web interface can directly edit sens

References

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