CVE-2026-76487

Full vulnerability record from the local CVENow database.

Description

A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct access control bypass attacks on an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to access parts of the network that are beyond the scope of their intended access.

Severity

MEDIUM

CVSS score

5.3 (v3.1)

Vulnerability status

Awaiting Analysis

Source identifier

[email protected]

Published

2026-10-21 17:19:08.047000

Last modified

2026-10-22 14:17:46.920000

View original CVE JSON

{
  "id": "CVE-2026-76487",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-21T17:19:08.047",
  "lastModified": "2026-10-22T14:17:46.920",
  "vulnStatus": "Awaiting Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A vulnerability in Cisco Unified Communications Manager (Unified CM) and Cisco Unified Communications Manager Session Management Edition (Unified CM SME) could allow an unauthenticated, remote attacker to conduct access control bypass attacks on an affected device.\r\n\r\nThis vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to access parts of the network that are beyond the scope of their intended access."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Cisco",
          "product": "Cisco Unified Communications Manager",
          "defaultStatus": "unknown",
          "versions": [
            {
              "version": "14",
              "status": "affected"
            },
            {
              "version": "14SU1",
              "status": "affected"
            },
            {
              "version": "14SU2",
              "status": "affected"
            },
            {
              "version": "14SU3",
              "status": "affected"
            },
            {
              "version": "15",
              "status": "affected"
            },
            {
              "version": "15SU1",
              "status": "affected"
            },
            {
              "version": "14SU4",
              "status": "affected"
            },
            {
              "version": "14SU4a",
              "status": "affected"
            },
            {
              "version": "15SU1a",
              "status": "affected"
            },
            {
              "version": "15SU2",
              "status": "affected"
            },
            {
              "version": "15.0.1.13010-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13011-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13012-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13013-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13014-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13015-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13016-1",
              "status": "affected"
            },
            {
              "version": "15.0.1.13017-1",
              "status": "affected"
            },
            {
              "version": "15SU3a",
              "status": "affected"
            },
            {
              "version": "14SU5",
              "status": "affected"
            },
            {
              "version": "15SU4",
              "status": "affected"
            },
            {
              "version": "15SU4a",
              "status": "affected"
            },
            {
              "version": "14SU6",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "[email protected]",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-10-22T13:21:24.610490Z",
          "id": "CVE-2026-76487",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-749"
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2",
      "source": "[email protected]"
    }
  ]
}