Buffer Over-read DoS Vulnerability in COMMGR2

{
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "cveMetadata": {
    "cveId": "CVE-2026-3631",
    "assignerOrgId": "759f5e80-c8e1-4224-bead-956d7b33c98b",
    "assignerShortName": "Deltaww",
    "dateUpdated": "2026-03-09T02:56:06.391Z",
    "dateReserved": "2026-03-06T06:46:15.699Z",
    "datePublished": "2026-03-09T02:56:06.391Z",
    "state": "PUBLISHED"
  },
  "containers": {
    "cna": {
      "providerMetadata": {
        "orgId": "759f5e80-c8e1-4224-bead-956d7b33c98b",
        "shortName": "Deltaww",
        "dateUpdated": "2026-03-09T02:56:06.391Z"
      },
      "datePublic": "2026-03-09T02:22:00.000Z",
      "title": "Buffer Over-read DoS Vulnerability in COMMGR2",
      "descriptions": [
        {
          "lang": "en",
          "value": "Delta Electronics COMMGR2 has \n\nBuffer Over-read DoS vulnerability.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "Delta Electronics COMMGR2 has \n\nBuffer Over-read DoS vulnerability."
            }
          ]
        }
      ],
      "affected": [
        {
          "vendor": "DeltaWW",
          "product": "COMMGR2",
          "platforms": [
            "Windows"
          ],
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "0",
              "status": "affected",
              "versionType": "custom",
              "lessThanOrEqual": "2.11.0"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "lang": "en",
              "description": "CWE-125 Out-of-bounds Read",
              "cweId": "CWE-125",
              "type": "CWE"
            }
          ]
        }
      ],
      "references": [
        {
          "url": "https://filecenter.deltaww.com/news/download/doc/Delta-PCSA-2026-00005_COMMGR%202%20Multiple%20Vulnerabilities%20(CVE-2026-3630,%20CVE-2026-3631).pdf"
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-540",
          "descriptions": [
            {
              "lang": "en",
              "value": "CAPEC-540 Overread Buffers"
            }
          ]
        }
      ],
      "metrics": [
        {
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ],
          "cvssV3_1": {
            "version": "3.1",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "attackVector": "NETWORK",
            "attackComplexity": "LOW",
            "privilegesRequired": "NONE",
            "userInteraction": "NONE",
            "scope": "UNCHANGED",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH"
          }
        }
      ],
      "solutions": [
        {
          "lang": "en",
          "value": "Please download and upgrade COMMGR2 to v2.11.1 or later.",
          "supportingMedia": [
            {
              "type": "text/html",
              "base64": false,
              "value": "Please download and upgrade COMMGR2 to v2.11.1 or later."
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "value": "Tenable",
          "type": "reporter"
        }
      ]
    }
  }
}