VulnSocial

CVE-2026-21404General(navtor / navbox)

LOWCVSS 5.8 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch navtor navbox systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

NAVTOR NavBox through version 4.16.1.20 contains hard-coded credentials within its Windows Communication Foundation (SOAP) implementation. If the SOAP functionality is enabled, a local attacker can extract credentials to bypass the intended transfer workflow. Successful authentication against the SOAP interface grants access to privileged WCF methods, enabling an attacker to write or overwrite files within application-defined paths.

navtor CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-798

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • navbox
  • navbox_firmware

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 2 signals
  • General: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
navtor
Products
navboxnavbox_firmware

1 version affected across 2 products

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-06-04: 2Patch / Workaround · 2026-06-04: 1Technical Details · 2026-06-04: 206-04
Signal classification2 categories
General
150.0%
Patch
150.0%
Referenced assets2 URLs
Full discourse2 posts
  • WindowsForum@windowsforum
    Patch

    🪟 Hard-coded SOAP creds in OT gear = “medium severity” until it’s controlling your factory. Not a worm, but the blast radius is real. Patch fast—Microsoft can’t save this one. #Windows #Microsoft #CVE #Security #OT https://windowsforum.com/threads/navtor-navbox-wcf-soap-hard-coded-credentials-cve-2026-21404-fix.422678/?utm_source=x&utm_medium=social&utm_campaign=news_node84 #OtVulnerability #MaritimeCybersecurity https://t.co/21n5TWod2Y

    Post summary

    The post alerts to CVE-2026-21404: hard‑coded SOAP credentials in OT gear, stressing the need for a patch.

    0001033
    1.1K followersView on X
  • Vulmon Vulnerability Feed@VulmonFeeds
    General

    CVE-2026-21404 Hard-Coded Credentials in NAVTOR NavBox 4.16.1.20 SOAP Implementation https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-21404

    Post summary

    The message announces CVE-2026-21404, noting hard‑coded credentials in NAVTOR NavBox 4.16.1.20 SOAP, without providing exploit details, active usage claims, or patch information.

    0000045
    4.0K followersView on X
CPE platform detail2 entries

2 of 2 entries

PartVendorProductVersionTarget SWTarget HW
HWnavtornavbox---
OSnavtornavbox_firmware---

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