Security readout for executives and security teams
Plain-English summary
Every version of the FURUNO FA-50 contains hard-coded credentials. Someone who knows them and can reach the vessel’s internal network could access its settings and change the identification number. This creates serious integrity and availability risk, although the supplied sources do not establish exploitation in the wild.
Executive priority
Treat this as an urgent maritime operational-security issue. Immediately identify affected vessels, constrain internal-network access, and seek FURUNO’s supported remediation. Prioritize vessels with remote connectivity, broad internal access, or weak network segmentation. Do not interpret the critical score as proof of active attacks.
Technical view
CVE-2026-59769 is a CWE-798 hard-coded credentials flaw affecting all FA-50 versions. The CVSS 3.1 score is 9.1: network-accessible, low complexity, no privileges or user interaction, with high integrity and availability impact. Access to the vessel’s internal network and knowledge of the embedded credentials are stated prerequisites.
Likely exposure
Exposure exists wherever an FA-50 is installed and reachable from a vessel’s internal network. All versions are listed as affected. Risk increases when that network is accessible from less-trusted devices, users, wireless segments, remote-access services, or interconnected operational systems.
Exploitation context
The CVE is not listed as KEV, and the supplied sources provide no evidence of active exploitation or public exploit availability. Exploitation requires knowledge of the credentials and access to the vessel’s internal network. The critical rating reflects potential impact and ease after those prerequisites are met.
Researcher notes
The affected scope is unusually broad: FA-50, all versions. The record maps the issue to CWE-798 and states a settings-screen identification-number change as the demonstrated action. CVSS indicates high integrity and availability impact but no confidentiality impact. The supplied bundle names no patch, fixed release, credential-rotation method, or confirmed exploitation.
Mitigation direction
- Inventory all FA-50 installations and document their network reachability.
- Restrict FA-50 access to explicitly authorized management systems and personnel.
- Segment vessel operational equipment from user, guest, wireless, and other less-trusted networks.
- Review FURUNO and JVN guidance for an approved remediation or replacement path.
- Monitor for unauthorized settings access and unexpected identification-number changes.
Validation and detection
- Confirm whether each vessel operates a FURUNO FA-50; treat every version as affected.
- Map all local, wireless, and remote paths into the FA-50 network segment.
- Verify network controls permit access only from approved management sources.
- Review configuration records for unexplained identification-number or settings changes.
- Confirm the remediation status directly against current FURUNO guidance.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-798: Credential and account abuse lookup
Authentication and credential weaknesses can make valid-account abuse and credential telemetry useful review starting points. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2026-59769 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Critical
- CVSS
- 9.1 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
SSVC decision data
CVSS vector scores
2 official scoresWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H3.95.2jpcertCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N——jpcertVulnerability scoring details
Base CVSS 4.0 score
8.8HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N
Base CVSS 3.1 score
9.1CriticalVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- https://www.furuno.co.jp/en/news/notice/notice_category.html?itemid=1857&dispmid=965CVE reference, jpcert
- https://www.furuno.co.jp/news/notice/notice_category.html?itemid=1856&dispmid=1039CVE reference, jpcert
- https://jvn.jp/en/vu/JVNVU95422936/CVE reference, jpcert
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Use of Hard-coded Credentials
Use of Hard-coded Credentials represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.