How severe is CVE-2026-42929?

CVE-2026-42929 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.

Is CVE-2026-42929 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-42929?

CVE-2026-42929 affects Macgregor Interschalt Vdr G4e Firmware. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-42929?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-42929 have an EU (EUVD) identifier?

Yes. CVE-2026-42929 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33400.

When was CVE-2026-42929 published?

CVE-2026-42929 was published on 2026-05-29 and last updated on 2026-06-17.

CVE-2026-42929

CVE-2026-42929 is a high-severity vulnerability in Macgregor Interschalt Vdr G4e Firmware with a CVSS 3.x base score of 8.3. 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-798.

Key facts

Severity: High (CVSS 3.x base score 8.3)
CVSS v4: 8.7
EPSS exploit prediction: 0% (13th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-33400
Weakness: CWE-798
Affected product: Macgregor Interschalt Vdr G4e Firmware
Published: 2026-05-29
Last modified: 2026-06-17

Description

Danelec MacGregor Voyage Data Recorder includes default accounts with hard-coded credentials.

Frequently asked questions

What is CVE-2026-42929?: Danelec MacGregor Voyage Data Recorder includes default accounts with hard-coded credentials.
How severe is CVE-2026-42929?: CVE-2026-42929 has a CVSS 3.x base score of 8.3, rated high severity. It is exploitable over an adjacent network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability low.
Is CVE-2026-42929 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (13th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-42929?: CVE-2026-42929 affects Macgregor Interschalt Vdr G4e Firmware. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-42929?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-42929 have an EU (EUVD) identifier?: Yes. CVE-2026-42929 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-33400.
When was CVE-2026-42929 published?: CVE-2026-42929 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-2026-40425 — 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-2026-42951 — Medium (CVSS 5.4): An authenticated user can download a backup of the Danelec MacGregor Voyage Data Recorder device which includes…
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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