Vulnerability-Lookup

CVE-2026-76487 (GCVE-0-2026-76487)

Vulnerability from cvelistv5 – Published: 2026-10-21 16:16 – Updated: 2026-10-22 13:37

Title

Cisco Unified Communications Manager Improper Access Control Vulnerability

Summary

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

5.3 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-22 13:21 UTC

CWE

CWE-749 - Exposed Dangerous Method or Function

Assigner

cisco CNA under the mitre root

CNA scorecard C 66/100 over 442 records in the last 180 days details

References

1 reference

URL	Tags
https://sec.cloudapps.cisco.com/security/center/c…

Impacted products

1 product

Vendor	Product	Version	CPE status
Cisco	Cisco Unified Communications Manager	Affected: 14 Affected: 14SU1 Affected: 14SU2 Affected: 14SU3 Affected: 15 Affected: 15SU1 Affected: 14SU4 Affected: 14SU4a Affected: 15SU1a Affected: 15SU2 Affected: 15.0.1.13010-1 Affected: 15.0.1.13011-1 Affected: 15.0.1.13012-1 Affected: 15.0.1.13013-1 Affected: 15.0.1.13014-1 Affected: 15.0.1.13015-1 Affected: 15.0.1.13016-1 Affected: 15.0.1.13017-1 Affected: 15SU3a Affected: 14SU5 Affected: 15SU4 Affected: 15SU4a Affected: 14SU6	guessed

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-76487",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-22T13:21:24.610490Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-22T13:37:53.516Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Unified Communications Manager",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "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"
            }
          ]
        }
      ],
      "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."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco 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": "NONE",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-749",
              "description": "Exposed Dangerous Method or Function",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-21T16:16:54.579Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-cucm-access-PW9e8Jt2",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2"
        }
      ],
      "source": {
        "advisory": "cisco-sa-cucm-access-PW9e8Jt2",
        "defects": [
          "CSCwv00936"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Unified Communications Manager Improper Access Control Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-76487",
    "datePublished": "2026-10-21T16:16:54.579Z",
    "dateReserved": "2026-08-19T12:02:03.639Z",
    "dateUpdated": "2026-10-22T13:37:53.516Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-76487",
      "date": "2026-10-22",
      "epss": "0.00501",
      "percentile": "0.41967"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
              {
                "defaultStatus": "unknown",
                "product": "Cisco Unified Communications Manager",
                "vendor": "Cisco",
                "versions": [
                  {
                    "status": "affected",
                    "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"
                  }
                ]
              }
            ],
            "source": "psirt@cisco.com"
          }
        ],
        "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."
          }
        ],
        "id": "CVE-2026-76487",
        "lastModified": "2026-10-22T14:17:46.920",
        "metrics": {
          "cvssMetricV31": [
            {
              "cvssData": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "exploitabilityScore": 3.9,
              "impactScore": 1.4,
              "source": "psirt@cisco.com",
              "type": "Secondary"
            }
          ],
          "ssvcV203": [
            {
              "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "ssvcData": {
                "id": "CVE-2026-76487",
                "options": [
                  {
                    "exploitation": "none"
                  },
                  {
                    "automatable": "yes"
                  },
                  {
                    "technicalImpact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-22T13:21:24.610490Z",
                "version": "2.0.3"
              }
            }
          ]
        },
        "published": "2026-10-21T17:19:08.047",
        "references": [
          {
            "source": "psirt@cisco.com",
            "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2"
          }
        ],
        "sourceIdentifier": "psirt@cisco.com",
        "vulnStatus": "Awaiting Analysis",
        "weaknesses": [
          {
            "description": [
              {
                "lang": "en",
                "value": "CWE-749"
              }
            ],
            "source": "psirt@cisco.com",
            "type": "Secondary"
          }
        ]
      }
    },
    "vulnrichment": {
      "containers": {
        "adp": [
          {
            "metrics": [
              {
                "other": {
                  "content": {
                    "id": "CVE-2026-76487",
                    "options": [
                      {
                        "Exploitation": "none"
                      },
                      {
                        "Automatable": "yes"
                      },
                      {
                        "Technical Impact": "partial"
                      }
                    ],
                    "role": "CISA Coordinator",
                    "timestamp": "2026-10-22T13:21:24.610490Z",
                    "version": "2.0.3"
                  },
                  "type": "ssvc"
                }
              }
            ],
            "providerMetadata": {
              "dateUpdated": "2026-10-22T13:35:33.117Z",
              "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
              "shortName": "CISA-ADP"
            },
            "title": "CISA ADP Vulnrichment"
          }
        ],
        "cna": {
          "affected": [
            {
              "defaultStatus": "unknown",
              "product": "Cisco Unified Communications Manager",
              "vendor": "Cisco",
              "versions": [
                {
                  "status": "affected",
                  "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"
                }
              ]
            }
          ],
          "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."
            }
          ],
          "exploits": [
            {
              "lang": "en",
              "value": "The Cisco 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": "NONE",
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "confidentialityImpact": "NONE",
                "integrityImpact": "LOW",
                "privilegesRequired": "NONE",
                "scope": "UNCHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
                "version": "3.1"
              },
              "format": "cvssV3_1"
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-749",
                  "description": "Exposed Dangerous Method or Function",
                  "lang": "en",
                  "type": "cwe"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-10-21T16:16:54.579Z",
            "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
            "shortName": "cisco"
          },
          "references": [
            {
              "name": "cisco-sa-cucm-access-PW9e8Jt2",
              "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2"
            }
          ],
          "source": {
            "advisory": "cisco-sa-cucm-access-PW9e8Jt2",
            "defects": [
              "CSCwv00936"
            ],
            "discovery": "EXTERNAL"
          },
          "title": "Cisco Unified Communications Manager Improper Access Control Vulnerability"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "assignerShortName": "cisco",
        "cveId": "CVE-2026-76487",
        "datePublished": "2026-10-21T16:16:54.579Z",
        "dateReserved": "2026-08-19T12:02:03.639Z",
        "dateUpdated": "2026-10-22T13:37:53.516Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

CISCO-SA-CUCM-ACCESS-PW9E8JT2

Vulnerability from csaf_cisco - Published: 2026-10-21 16:00 - Updated: 2026-10-21 16:00

Summary

Cisco Unified Communications Manager Improper Access Control Vulnerability

Scope

1 vulnerability in this advisory, including CVE-2026-76487.

CVE-2026-76487

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Known affected: 24 products

https://software.cisco.com

Open the full advisory

FKIE_CVE-2026-76487

Vulnerability from fkie_nvd - Published: 2026-10-21 17:19 - Updated: 2026-10-22 14:17

Severity

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

References

	URL	Tags
	psirt@cisco.com	https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Unified Communications Manager",
          "vendor": "Cisco",
          "versions": [
            {
              "status": "affected",
              "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"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "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."
    }
  ],
  "id": "CVE-2026-76487",
  "lastModified": "2026-10-22T14:17:46.920",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-76487",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-10-22T13:21:24.610490Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-10-21T17:19:08.047",
  "references": [
    {
      "source": "psirt@cisco.com",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Awaiting Analysis",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-749"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    }
  ]
}

GHSA-R6HQ-G55G-5H8H

Vulnerability from github – Published: 2026-10-21 18:33 – Updated: 2026-10-21 18:33

Details

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

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-76487"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-749"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-21T17:19:08Z",
    "severity": "MODERATE"
  },
  "details": "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.\n\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.",
  "id": "GHSA-r6hq-g55g-5h8h",
  "modified": "2026-10-21T18:33:25Z",
  "published": "2026-10-21T18:33:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-76487"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-cucm-access-PW9e8Jt2"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

NCSC-2026-0451

Vulnerability from csaf_ncscnl - Published: 2026-10-22 12:09 - Updated: 2026-10-22 12:09

Summary

Kwetsbaarheden verholpen in Cisco Expressway Series

Scope

19 vulnerabilities in this advisory, including CVE-2026-76487.

CVE-2026-76487

A vulnerability in Cisco Unified Communications Manager and its Session Management Edition allows an unauthenticated remote attacker to bypass access controls by sending crafted HTTP requests, potentially gaining unauthorized network access.

5.3 (Medium)


                
                  CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Known affected: 3 products

Open the full advisory

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.

Vulnerability timeline

Sightings and recorded dates, grouped by day · UTC

Order JSON

Publication & reservation Sightings KEV catalogs Other timestamps

Loading timeline…

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2026-76487 (GCVE-0-2026-76487)

CISCO-SA-CUCM-ACCESS-PW9E8JT2

FKIE_CVE-2026-76487

GHSA-R6HQ-G55G-5H8H

NCSC-2026-0451

Tags

Sightings

Nomenclature

Vulnerability timeline

Related by attack behaviour