CVE-2025-20327 (GCVE-0-2025-20327)

Vulnerability from cvelistv5 – Published: 2025-09-24 17:11 – Updated: 2025-09-24 18:11
VLAI?
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.
Severity ?
7.7 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
CWE
  • CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
Impacted products
Vendor Product Version
Cisco IOS Affected: 15.2(6)E2
Affected: 15.2(7)E
Affected: 15.2(6)E2a
Affected: 15.2(6)E2b
Affected: 15.2(7)E1
Affected: 15.2(7)E0a
Affected: 15.2(7)E0b
Affected: 15.2(7)E0s
Affected: 15.2(6)E3
Affected: 15.2(7)E2
Affected: 15.2(7a)E0b
Affected: 15.2(7)E3
Affected: 15.2(7)E1a
Affected: 15.2(7b)E0b
Affected: 15.2(7)E2a
Affected: 15.2(7)E4
Affected: 15.2(7)E3k
Affected: 15.2(8)E
Affected: 15.2(8)E1
Affected: 15.2(7)E5
Affected: 15.2(7)E6
Affected: 15.2(8)E2
Affected: 15.2(7)E7
Affected: 15.2(8)E3
Affected: 15.2(7)E8
Affected: 15.2(8)E4
Affected: 15.2(7)E9
Affected: 15.2(8)E5
Affected: 15.2(7)E10
Create a notification for this product.
Show details on NVD website
To clipboard 

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2025-20327",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2025-09-24T18:08:55.351442Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2025-09-24T18:11:26.278Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "IOS",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "version": "15.2(6)E2"
            },
            {
              "status": "affected",
              "version": "15.2(7)E"
            },
            {
              "status": "affected",
              "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"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "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"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-1287",
              "description": "Improper Validation of Specified Type of Input",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2025-09-24T17:11:44.744Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-ios-invalid-url-dos-Nvxszf6u",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-invalid-url-dos-Nvxszf6u"
        }
      ],
      "source": {
        "advisory": "cisco-sa-ios-invalid-url-dos-Nvxszf6u",
        "defects": [
          "CSCwo34150"
        ],
        "discovery": "EXTERNAL"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2025-20327",
    "datePublished": "2025-09-24T17:11:44.744Z",
    "dateReserved": "2024-10-10T19:15:13.254Z",
    "dateUpdated": "2025-09-24T18:11:26.278Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2025-20327",
      "date": "2026-05-24",
      "epss": "0.00172",
      "percentile": "0.38138"
    },
    "nvd": "{\"cve\":{\"id\":\"CVE-2025-20327\",\"sourceIdentifier\":\"psirt@cisco.com\",\"published\":\"2025-09-24T18:15:36.537\",\"lastModified\":\"2025-09-26T14:32:53.583\",\"vulnStatus\":\"Awaiting Analysis\",\"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.\"}],\"metrics\":{\"cvssMetricV31\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H\",\"baseScore\":7.7,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"CHANGED\",\"confidentialityImpact\":\"NONE\",\"integrityImpact\":\"NONE\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.1,\"impactScore\":4.0}]},\"weaknesses\":[{\"source\":\"psirt@cisco.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-1287\"}]}],\"references\":[{\"url\":\"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-invalid-url-dos-Nvxszf6u\",\"source\":\"psirt@cisco.com\"}]}}",
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2025-20327\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2025-09-24T18:08:55.351442Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2025-09-24T18:11:16.151Z\"}}], \"cna\": {\"source\": {\"defects\": [\"CSCwo34150\"], \"advisory\": \"cisco-sa-ios-invalid-url-dos-Nvxszf6u\", \"discovery\": \"EXTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"CHANGED\", \"version\": \"3.1\", \"baseScore\": 7.7, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"IOS\", \"versions\": [{\"status\": \"affected\", \"version\": \"15.2(6)E2\"}, {\"status\": \"affected\", \"version\": \"15.2(7)E\"}, {\"status\": \"affected\", \"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\"}]}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco Product Security Incident Response Team (PSIRT) is not aware of any public announcements or malicious use of the vulnerability that is described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ios-invalid-url-dos-Nvxszf6u\", \"name\": \"cisco-sa-ios-invalid-url-dos-Nvxszf6u\"}], \"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.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-1287\", \"description\": \"Improper Validation of Specified Type of Input\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2025-09-24T17:11:44.744Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2025-20327\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2025-09-24T18:11:26.278Z\", \"dateReserved\": \"2024-10-10T19:15:13.254Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2025-09-24T17:11:44.744Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.1"
    }
  }
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

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.