How severe is CVE-2026-42951?

CVE-2026-42951 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.

Is CVE-2026-42951 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42951?

CVE-2026-42951 affects Macgregor Interschalt Vdr G4e Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42951?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2026-42951 have an EU (EUVD) identifier?

Yes. CVE-2026-42951 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33396.

When was CVE-2026-42951 published?

CVE-2026-42951 was published on 2026-05-29 and last updated on 2026-06-17.

CVE-2026-42951

CVE-2026-42951 is a medium-severity vulnerability in Macgregor Interschalt Vdr G4e Firmware with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-522.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v4: 5.9
EPSS exploit prediction: 0% (7th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33396
Weakness: CWE-522
Affected product: Macgregor Interschalt Vdr G4e Firmware
Published: 2026-05-29
Last modified: 2026-06-17

Description

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

Frequently asked questions

What is CVE-2026-42951?: An authenticated user can download a backup of the Danelec MacGregor Voyage Data Recorder device which includes account data and password hashes.
How severe is CVE-2026-42951?: CVE-2026-42951 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over an adjacent network with high attack complexity, requires low privileges and no user interaction. Impact on confidentiality is high, integrity low, and availability none.
Is CVE-2026-42951 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (7th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42951?: CVE-2026-42951 affects Macgregor Interschalt Vdr G4e Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42951?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2026-42951 have an EU (EUVD) identifier?: Yes. CVE-2026-42951 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33396.
When was CVE-2026-42951 published?: CVE-2026-42951 was published on 2026-05-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:o:macgregor:interschalt_vdr_g4e_firmware:*:*:*:*:*:*:*:*

More vulnerabilities in Macgregor Interschalt Vdr G4e Firmware

CVE-2026-42941 — High (CVSS 8.3): The Danelec MacGregor Voyage Data Recorder device includes a default username and password, with no enforced password…
CVE-2026-42929 — High (CVSS 8.3): Danelec MacGregor Voyage Data Recorder includes default accounts with hard-coded credentials.
CVE-2026-40425 — Medium (CVSS 5.7): The administrator account for the Danelec MacGregor Voyage Data Recorder web interface can directly edit sensitive…
CVE-2026-44611 — Medium (CVSS 5.4): Danelec MacGregor Voyage Data Recorder passwords are stored with a hashing method which limits password length and is…
CVE-2016-9339 — Medium (CVSS 5.3): An issue was discovered in INTERSCHALT Maritime Systems VDR G4e Versions 5.220 and prior. External input is used to…

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