FKIE_CVE-2025-20327

Vulnerability from fkie_nvd - Published: 2025-09-24 18:15 - Updated: 2026-09-26 00:10
Severity
7.7 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Summary
A vulnerability in the web UI of Cisco IOS Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper input validation. An attacker could exploit this vulnerability by sending a crafted URL in an HTTP request. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition.
References
psirt@cisco.comhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-invalid-url-dos-Nvxszf6uVendor Advisory
Impacted products
Vendor Product Version
cisco ios 15.2\(6\)e2
cisco ios 15.2\(6\)e2a
cisco ios 15.2\(6\)e2b
cisco ios 15.2\(6\)e3
cisco ios 15.2\(7\)e
cisco ios 15.2\(7\)e0a
cisco ios 15.2\(7\)e0b
cisco ios 15.2\(7\)e0s
cisco ios 15.2\(7\)e1
cisco ios 15.2\(7\)e1a
cisco ios 15.2\(7\)e2
cisco ios 15.2\(7\)e2a
cisco ios 15.2\(7\)e3
cisco ios 15.2\(7\)e3k
cisco ios 15.2\(7\)e4
cisco ios 15.2\(7\)e5
cisco ios 15.2\(7\)e6
cisco ios 15.2\(7\)e7
cisco ios 15.2\(7\)e8
cisco ios 15.2\(7\)e9
cisco ios 15.2\(7\)e10
cisco ios 15.2\(7a\)e0b
cisco ios 15.2\(7b\)e0b
cisco ios 15.2\(8\)e
cisco ios 15.2\(8\)e1
cisco ios 15.2\(8\)e2
cisco ios 15.2\(8\)e3
cisco ios 15.2\(8\)e4
cisco ios 15.2\(8\)e5
To clipboard 

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "IOS",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "15.2(6)E2"
            },
            {
              "status": "affected",
              "version": "15.2(7)E"
            },
            {
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              "version": "15.2(6)E2a"
            },
            {
              "status": "affected",
              "version": "15.2(6)E2b"
            },
            {
              "status": "affected",
              "version": "15.2(7)E1"
            },
            {
              "status": "affected",
              "version": "15.2(7)E0a"
            },
            {
              "status": "affected",
              "version": "15.2(7)E0b"
            },
            {
              "status": "affected",
              "version": "15.2(7)E0s"
            },
            {
              "status": "affected",
              "version": "15.2(6)E3"
            },
            {
              "status": "affected",
              "version": "15.2(7)E2"
            },
            {
              "status": "affected",
              "version": "15.2(7a)E0b"
            },
            {
              "status": "affected",
              "version": "15.2(7)E3"
            },
            {
              "status": "affected",
              "version": "15.2(7)E1a"
            },
            {
              "status": "affected",
              "version": "15.2(7b)E0b"
            },
            {
              "status": "affected",
              "version": "15.2(7)E2a"
            },
            {
              "status": "affected",
              "version": "15.2(7)E4"
            },
            {
              "status": "affected",
              "version": "15.2(7)E3k"
            },
            {
              "status": "affected",
              "version": "15.2(8)E"
            },
            {
              "status": "affected",
              "version": "15.2(8)E1"
            },
            {
              "status": "affected",
              "version": "15.2(7)E5"
            },
            {
              "status": "affected",
              "version": "15.2(7)E6"
            },
            {
              "status": "affected",
              "version": "15.2(8)E2"
            },
            {
              "status": "affected",
              "version": "15.2(7)E7"
            },
            {
              "status": "affected",
              "version": "15.2(8)E3"
            },
            {
              "status": "affected",
              "version": "15.2(7)E8"
            },
            {
              "status": "affected",
              "version": "15.2(8)E4"
            },
            {
              "status": "affected",
              "version": "15.2(7)E9"
            },
            {
              "status": "affected",
              "version": "15.2(8)E5"
            },
            {
              "status": "affected",
              "version": "15.2(7)E10"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
    {
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          "negate": false,
          "operator": "OR"
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  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in the web UI of Cisco IOS Software could allow an authenticated, remote attacker with low privileges to cause a denial of service (DoS) condition on an affected device.\r\n\r This vulnerability is due to improper input validation. An attacker could exploit this vulnerability by sending a crafted URL in an HTTP request. A successful exploit could allow the attacker to cause the affected device to reload, resulting in a DoS condition."
    },
    {
      "lang": "es",
      "value": "Una vulnerabilidad en la interfaz de usuario web del software Cisco IOS podr\u00eda permitir a un atacante remoto autenticado con bajos privilegios provocar una condici\u00f3n de denegaci\u00f3n de servicio (DoS) en un dispositivo afectado.\nEsta vulnerabilidad se debe a una validaci\u00f3n de entrada inadecuada. Un atacante podr\u00eda explotar esta vulnerabilidad enviando una URL manipulada en una solicitud HTTP. Un exploit exitoso podr\u00eda permitir al atacante provocar que el dispositivo afectado se reinicie, resultando en una condici\u00f3n de DoS."
    }
  ],
  "id": "CVE-2025-20327",
  "lastModified": "2026-09-26T00:10:00.127",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.7,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "CHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.1,
        "impactScore": 4.0,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2025-20327",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2025-09-24T18:08:55.351442Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2025-09-24T18:15:36.537",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-invalid-url-dos-Nvxszf6u"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-1287"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    }
  ]
}



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