Vulnerability-Lookup

CVE-2026-10831 (GCVE-0-2026-10831)

Vulnerability from cvelistv5 – Published: 2026-06-16 13:46 – Updated: 2026-06-16 15:27

Title

Improper Authorization of Break Signal Commands in Devices

Summary

A denial-of-service vulnerability exists in NPort devices because of improper access control on the command port. The command interface does not properly validate whether a sender is associated with a valid data port session before accepting break signal commands. A remote attacker with network access can send crafted requests to disrupt serial communication for an active user session.

Severity ?

6.9 (Medium)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L

CWE

CWE-862 - Missing Authorization

Assigner

Moxa

References

URL

Tags

https://www.moxa.com/en/support/product-support/s…

vendor-advisory

Impacted products

Vendor

Product

Version

Moxa

NPort 6000 Series

Affected: 1.0 , ≤ 2.3 (custom)

Moxa

CN2600 Series

Affected: 1.0 , ≤ 4.6 (custom)

Credits

Artur Witek

Show details on NVD website

JSON

To clipboard

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CERTFR-2026-AVI-0763

Vulnerability from certfr_avis - Published: 2026-06-17 - Updated: 2026-06-17

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

Solutions

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

Impacted products

	Vendor	Product	Description
	Moxa	N/A	NPort 6000 Series versions antérieures à 2.3.9
	Moxa	N/A	CN2600 Series versions antérieures à 4.6.11

References

Title

Publication Time

FKIE_CVE-2026-10831

Vulnerability from fkie_nvd - Published: 2026-06-16 15:16 - Updated: 2026-06-17 10:12

Severity ?

6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L

Summary

References

	URL	Tags
	psirt@moxa.com	https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262370-cve-2026-10831-improper-authorization-vulnerability-in-serial-device-servers

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unaffected",
          "product": "NPort 6000 Series",
          "vendor": "Moxa",
          "versions": [
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              "lessThanOrEqual": "2.3",
              "status": "affected",
              "version": "1.0",
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        },
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          "vendor": "Moxa",
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    }
  ],
  "id": "CVE-2026-10831",
  "lastModified": "2026-06-17T10:12:35.883",
  "metrics": {
    "cvssMetricV40": [
      {
        "cvssData": {
          "Automatable": "NOT_DEFINED",
          "Recovery": "NOT_DEFINED",
          "Safety": "NOT_DEFINED",
          "attackComplexity": "LOW",
          "attackRequirements": "NONE",
          "attackVector": "NETWORK",
          "availabilityRequirement": "NOT_DEFINED",
          "baseScore": 6.9,
          "baseSeverity": "MEDIUM",
          "confidentialityRequirement": "NOT_DEFINED",
          "exploitMaturity": "NOT_DEFINED",
          "integrityRequirement": "NOT_DEFINED",
          "modifiedAttackComplexity": "NOT_DEFINED",
          "modifiedAttackRequirements": "NOT_DEFINED",
          "modifiedAttackVector": "NOT_DEFINED",
          "modifiedPrivilegesRequired": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
          "modifiedSubConfidentialityImpact": "NOT_DEFINED",
          "modifiedSubIntegrityImpact": "NOT_DEFINED",
          "modifiedUserInteraction": "NOT_DEFINED",
          "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
          "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
          "modifiedVulnIntegrityImpact": "NOT_DEFINED",
          "privilegesRequired": "NONE",
          "providerUrgency": "NOT_DEFINED",
          "subAvailabilityImpact": "LOW",
          "subConfidentialityImpact": "NONE",
          "subIntegrityImpact": "NONE",
          "userInteraction": "NONE",
          "valueDensity": "NOT_DEFINED",
          "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
          "version": "4.0",
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          "vulnConfidentialityImpact": "NONE",
          "vulnIntegrityImpact": "LOW",
          "vulnerabilityResponseEffort": "NOT_DEFINED"
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}

GHSA-FXJ4-V3M4-37HJ

Vulnerability from github – Published: 2026-06-16 15:33 – Updated: 2026-06-16 15:33

Details

Severity ?

6.9 (Medium)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L

Show details on source website

JSON

To clipboard

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  "affected": [],
  "aliases": [
    "CVE-2026-10831"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-862"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-16T15:16:34Z",
    "severity": "MODERATE"
  },
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  "id": "GHSA-fxj4-v3m4-37hj",
  "modified": "2026-06-16T15:33:51Z",
  "published": "2026-06-16T15:33:51Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10831"
    },
    {
      "type": "WEB",
      "url": "https://www.moxa.com/en/support/product-support/security-advisory/mpsa-262370-cve-2026-10831-improper-authorization-vulnerability-in-serial-device-servers"
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  "schema_version": "1.4.0",
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      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date

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.

Detection rules are retrieved from Rulezet.

Action not permitted

CVE-2026-10831 (GCVE-0-2026-10831)

CERTFR-2026-AVI-0763

Solutions

FKIE_CVE-2026-10831

GHSA-FXJ4-V3M4-37HJ

Tags

Sightings

Nomenclature