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    3 vulnerabilities found for TN-4500B Series by Moxa

    CVE-2026-15579 (GCVE-0-2026-15579)

    Vulnerability from nvd – Published: 2026-09-18 09:32 – Updated: 2026-09-18 10:39
    VLAI
    Summary
    An out-of-bounds write vulnerability exists in some of the Ethernet switches because of improper validation of the username field length during Web login processing. This may allow a remote attacker to submit a specially crafted overly long input, triggering a buffer overflow that can cause the authentication process to crash and result in a Denial of Service (DoS) attack.
    Severity
    8.8 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-18 10:38 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Moxa TN-4500B Series Affected: 1.0 , ≤ 2.0 (custom)
    Unaffected: 2.1 (custom)
        cpe:2.3:a:moxa:tn-4500b_series:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Credits
    Mask Lu
    Show details on NVD website
    To clipboard 

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    CVE-2026-15579 (GCVE-0-2026-15579)

    Vulnerability from cvelistv5 – Published: 2026-09-18 09:32 – Updated: 2026-09-18 10:39
    VLAI
    Summary
    An out-of-bounds write vulnerability exists in some of the Ethernet switches because of improper validation of the username field length during Web login processing. This may allow a remote attacker to submit a specially crafted overly long input, triggering a buffer overflow that can cause the authentication process to crash and result in a Denial of Service (DoS) attack.
    Severity
    8.8 (High)
    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:H/SC:N/SI:N/SA:N
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-09-18 10:38 UTC
    CWE
    Assigner
    References
    Impacted products
    Vendor Product Version
    Moxa TN-4500B Series Affected: 1.0 , ≤ 2.0 (custom)
    Unaffected: 2.1 (custom)
        cpe:2.3:a:moxa:tn-4500b_series:*:*:*:*:*:*:*:*
    		Create a notification for this product.
    Credits
    Mask Lu
    Show details on NVD website
    To clipboard 

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    CERTFR-2026-AVI-1205

    Vulnerability from certfr_avis - Published: 2026-09-18 - Updated: 2026-09-18

    Une vulnérabilité a été découverte dans les produits Moxa. Elle permet à un attaquant de provoquer un déni de service à distance.

    Solutions

    Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

    Impacted products
    Vendor Product Description
    Moxa TN-4500B Series TN-4500B Series versions antérieures à 2.1
    References
    Bulletin de sécurité Moxa MPSA-252620 2026-09-18 vendor-advisory

    Show details on source website
    To clipboard 

    {
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "TN-4500B Series versions ant\u00e9rieures \u00e0 2.1",
      "product": {
        "name": "TN-4500B Series",
        "vendor": {
          "name": "Moxa",
          "scada": true
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-15579",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-15579"
    }
  ],
  "initial_release_date": "2026-09-18T00:00:00",
  "last_revision_date": "2026-09-18T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-1205",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-09-18T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    }
  ],
  "summary": "Une vuln\u00e9rabilit\u00e9 a \u00e9t\u00e9 d\u00e9couverte dans les produits Moxa. Elle permet \u00e0 un attaquant de provoquer un d\u00e9ni de service \u00e0 distance.",
  "title": "Vuln\u00e9rabilit\u00e9 dans les produits Moxa",
  "vendor_advisories": [
    {
      "published_at": "2026-09-18",
      "title": "Bulletin de s\u00e9curit\u00e9 Moxa MPSA-252620",
      "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-252620-cve-2026-15579-out-of-bounds-write-vulnerability-in-ethernet-switch"
    }
  ]
}