ICSA-26-148-01
Vulnerability from csaf_cisa - Published: 2026-05-28 06:00 - Updated: 2026-05-28 06:00Summary
MacGregor Voyage Data Recorder (VDR) G4e
Notes
Legal Notice and Terms of Use: This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy & Use policy (https://www.cisa.gov/privacy-policy).
Advisory Summary: Successful exploitation of these vulnerabilities could result in an attacker gaining administrator access to the device.
Critical infrastructure sectors: Transportation Systems
Countries/areas deployed: Worldwide
Company headquarters location: Denmark
Recommended Practices: CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.
Recommended Practices: Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.
Recommended Practices: Locate control system networks and remote devices behind firewalls and isolating them from business networks.
Recommended Practices: When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.
Recommended Practices: CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.
Recommended Practices: CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.
Recommended Practices: CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.
Recommended Practices: Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.
Recommended Practices: Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.
Recommended Practices: No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.
References
27 references
Acknowledgments
Pen Test Partners
Andrew Tierney
{
"document": {
"acknowledgments": [
{
"names": [
"Andrew Tierney"
],
"organization": "Pen Test Partners",
"summary": "reported these vulnerabilities to CISA"
}
],
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Disclosure is not limited",
"tlp": {
"label": "WHITE",
"url": "https://www.cisa.gov/news-events/news/traffic-light-protocol-tlp-definitions-and-usage"
}
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"notes": [
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"text": "This product is provided subject to this Notification (https://www.cisa.gov/notification) and this Privacy \u0026 Use policy (https://www.cisa.gov/privacy-policy).",
"title": "Legal Notice and Terms of Use"
},
{
"category": "summary",
"text": "Successful exploitation of these vulnerabilities could result in an attacker gaining administrator access to the device.",
"title": "Advisory Summary"
},
{
"category": "other",
"text": "Transportation Systems",
"title": "Critical infrastructure sectors"
},
{
"category": "other",
"text": "Worldwide",
"title": "Countries/areas deployed"
},
{
"category": "other",
"text": "Denmark",
"title": "Company headquarters location"
},
{
"category": "general",
"text": "CISA recommends users take defensive measures to minimize the risk of exploitation of these vulnerabilities.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Minimize network exposure for all control system devices and/or systems, ensuring they are not accessible from the internet.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Locate control system networks and remote devices behind firewalls and isolating them from business networks.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "When remote access is required, use more secure methods, such as Virtual Private Networks (VPNs), recognizing VPNs may have vulnerabilities and should be updated to the most current version available. Also recognize VPN is only as secure as the connected devices.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA reminds organizations to perform proper impact analysis and risk assessment prior to deploying defensive measures.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA also provides a section for control systems security recommended practices on the ICS webpage on cisa.gov/ics. Several CISA products detailing cyber defense best practices are available for reading and download, including Improving Industrial Control Systems Cybersecurity with Defense-in-Depth Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "CISA encourages organizations to implement recommended cybersecurity strategies for proactive defense of ICS assets.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Additional mitigation guidance and recommended practices are publicly available on the ICS webpage at cisa.gov/ics in the technical information paper, ICS-TIP-12-146-01B--Targeted Cyber Intrusion Detection and Mitigation Strategies.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "Organizations observing suspected malicious activity should follow established internal procedures and report findings to CISA for tracking and correlation against other incidents.",
"title": "Recommended Practices"
},
{
"category": "general",
"text": "No known public exploitation specifically targeting these vulnerabilities has been reported to CISA at this time.",
"title": "Recommended Practices"
}
],
"publisher": {
"category": "coordinator",
"contact_details": "central@cisa.dhs.gov",
"name": "CISA",
"namespace": "https://www.cisa.gov/"
},
"references": [
{
"category": "self",
"summary": "ICS Advisory ICSA-26-148-01 JSON",
"url": "https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-148-01.json"
},
{
"category": "self",
"summary": "ICSA Advisory ICSA-26-148-01 - Web Version",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-148-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/uscert/ics/alerts/ICS-ALERT-10-301-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/resources-tools/resources/ics-recommended-practices"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/sites/default/files/publications/Cybersecurity_Best_Practices_for_Industrial_Control_Systems.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/topics/industrial-control-systems"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/ics-alerts/ics-alert-10-301-01"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/sites/default/files/recommended_practices/NCCIC_ICS-CERT_Defense_in_Depth_2016_S508C.pdf"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/news/targeted-cyber-intrusion-detection-and-mitigation-strategies-update-b"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/secure-our-world/teach-employees-avoid-phishing"
},
{
"category": "external",
"summary": "Recommended Practices",
"url": "https://www.cisa.gov/news-events/news/avoiding-social-engineering-and-phishing-attacks"
}
],
"title": "MacGregor Voyage Data Recorder (VDR) G4e",
"tracking": {
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"generator": {
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"number": "1",
"summary": "Initial Publication"
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"product_tree": {
"branches": [
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"branches": [
{
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},
"vulnerabilities": [
{
"cve": "CVE-2026-42941",
"cwe": {
"id": "CWE-1392",
"name": "Use of Default Credentials"
},
"notes": [
{
"category": "summary",
"text": "The VDR device includes a default username and password, with no enforced password change.",
"title": "Vulnerability Summary"
},
{
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"text": "SSVCv2/E:N/A:Y/2026-05-21T06:00:00.000000Z",
"title": "SSVC"
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-42941"
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"remediations": [
{
"category": "vendor_fix",
"details": "Danelec has released firmware version V5.250 to resolve these vulnerabilities. Users of MacGregor Voyage Data Recorder (VDR) G4e devices are encouraged to update the firmware at the earliest service attendance rather than waiting for an annual performance test. Contact Danelec with additional questions: https://www.danelec.com/contact",
"product_ids": [
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],
"url": "https://www.danelec.com/contact"
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"scores": [
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{
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"cwe": {
"id": "CWE-522",
"name": "Insufficiently Protected Credentials"
},
"notes": [
{
"category": "summary",
"text": "An authenticated user can download a backup of the device which includes account data and password hashes.",
"title": "Vulnerability Summary"
},
{
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"text": "SSVCv2/E:N/A:Y/2026-05-21T06:00:00.000000Z",
"title": "SSVC"
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"url": "https://www.first.org/cvss/calculator/3.1#CVSS:3.1/AV:A/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N"
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}
],
"remediations": [
{
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"details": "Danelec has released firmware version V5.250 to resolve these vulnerabilities. Users of MacGregor Voyage Data Recorder (VDR) G4e devices are encouraged to update the firmware at the earliest service attendance rather than waiting for an annual performance test. Contact Danelec with additional questions: https://www.danelec.com/contact",
"product_ids": [
"CSAFPID-0001"
],
"url": "https://www.danelec.com/contact"
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"scores": [
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{
"cve": "CVE-2026-44611",
"cwe": {
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"name": "Use of Password Hash With Insufficient Computational Effort"
},
"notes": [
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"text": "Passwords are stored with a hashing method which limits password length and is susceptible to brute force attacks.",
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"url": "https://www.cve.org/CVERecord?id=CVE-2026-44611"
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{
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],
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{
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"details": "Danelec has released firmware version V5.250 to resolve these vulnerabilities. Users of MacGregor Voyage Data Recorder (VDR) G4e devices are encouraged to update the firmware at the earliest service attendance rather than waiting for an annual performance test. Contact Danelec with additional questions: https://www.danelec.com/contact",
"product_ids": [
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{
"cve": "CVE-2026-40425",
"cwe": {
"id": "CWE-552",
"name": "Files or Directories Accessible to External Parties"
},
"notes": [
{
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"text": "The administrator account for the web interface can directly edit sensitive files related to authentication, potentially changing the root password.",
"title": "Vulnerability Summary"
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],
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"details": "Danelec has released firmware version V5.250 to resolve these vulnerabilities. Users of MacGregor Voyage Data Recorder (VDR) G4e devices are encouraged to update the firmware at the earliest service attendance rather than waiting for an annual performance test. Contact Danelec with additional questions: https://www.danelec.com/contact",
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"scores": [
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}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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