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CVE-2026-7256

Full vulnerability record from the local CVENow database.

Description

** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to execute operating system (OS) commands on a vulnerable device by sending a crafted HTTP request.

Severity
HIGH
CVSS score
8.8 (v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-05-12 04:16:29.360000
Last modified
2026-10-26 18:10:00.173000
View original CVE JSON
{
  "id": "CVE-2026-7256",
  "sourceIdentifier": "[email protected]",
  "published": "2026-05-12T04:16:29.360",
  "lastModified": "2026-10-26T18:10:00.173",
  "vulnStatus": "Analyzed",
  "cveTags": [
    {
      "sourceIdentifier": "[email protected]",
      "tags": [
        "unsupported-when-assigned"
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    }
  ],
  "descriptions": [
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      "lang": "en",
      "value": "** UNSUPPORTED WHEN ASSIGNED ** A command injection vulnerability in the CGI program of Zyxel WRE6505 v2 firmware version V1.00(ABDV.3)C0 could allow an adjacent attacker on the LAN to execute operating system (OS) commands on a vulnerable device by sending a crafted HTTP request."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad de inyección de comandos en el programa CGI del firmware Zyxel WRE6505 v2 versión V1.00(ABDV.3)C0 podría permitir a un atacante adyacente en la LAN ejecutar comandos del sistema operativo (SO) en un dispositivo vulnerable mediante el envío de una solicitud HTTP manipulada."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Zyxel",
          "product": "WRE6505 v2 firmware",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "V1.00(ABDV.3)C0",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "attackVector": "ADJACENT_NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9
      }
    ],
    "ssvcV203": [
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          "timestamp": "2026-05-12T12:48:41.435986Z",
          "id": "CVE-2026-7256",
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            },
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            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-78"
        }
      ]
    }
  ],
  "configurations": [
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  "references": [
    {
      "url": "https://www.zyxel.com/global/en/support/end-of-life",
      "source": "[email protected]",
      "tags": [
        "Product"
      ]
    }
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}