cvelistv5 - cve-2026-20034

CVE-2026-20034 (GCVE-0-2026-20034)

Vulnerability from cvelistv5

Published

2026-05-06 16:16

Modified

2026-05-07 03:55

Severity ?

8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CWE

CWE-35 - Path Traversal: '.../...//'

Summary

A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.

References

URL

Tags

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy

Impacted products

	Vendor	Product	Version
	Cisco	Cisco Unity Connection	Version: 12.5(1) Version: 12.5(1)SU1 Version: 12.5(1)SU2 Version: 12.5(1)SU3 Version: 12.5(1)SU4 Version: 14 Version: 12.5(1)SU5 Version: 14SU1 Version: 12.5(1)SU6 Version: 14SU2 Version: 12.5(1)SU7 Version: 14SU3 Version: 12.5(1)SU8 Version: 14SU3a Version: 12.5(1)SU8a Version: 15 Version: 15SU1 Version: 14SU4 Version: 12.5(1)SU9 Version: 15SU2 Version: 15SU3

Show details on NVD website

JSON

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{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-20034",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
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                "role": "CISA Coordinator",
                "timestamp": "2026-05-06T00:00:00+00:00",
                "version": "2.0.3"
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          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
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          "defaultStatus": "unknown",
          "product": "Cisco Unity Connection",
          "vendor": "Cisco",
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              "version": "12.5(1)"
            },
            {
              "status": "affected",
              "version": "12.5(1)SU1"
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              "status": "affected",
              "version": "12.5(1)SU2"
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              "version": "12.5(1)SU3"
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              "status": "affected",
              "version": "12.5(1)SU4"
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            {
              "status": "affected",
              "version": "12.5(1)SU5"
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            {
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            {
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              "version": "12.5(1)SU6"
            },
            {
              "status": "affected",
              "version": "14SU2"
            },
            {
              "status": "affected",
              "version": "12.5(1)SU7"
            },
            {
              "status": "affected",
              "version": "14SU3"
            },
            {
              "status": "affected",
              "version": "12.5(1)SU8"
            },
            {
              "status": "affected",
              "version": "14SU3a"
            },
            {
              "status": "affected",
              "version": "12.5(1)SU8a"
            },
            {
              "status": "affected",
              "version": "15"
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            {
              "status": "affected",
              "version": "15SU1"
            },
            {
              "status": "affected",
              "version": "14SU4"
            },
            {
              "status": "affected",
              "version": "12.5(1)SU9"
            },
            {
              "status": "affected",
              "version": "15SU2"
            },
            {
              "status": "affected",
              "version": "15SU3"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device.\r\n\r\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device.\u0026nbsp;To exploit this vulnerability, the attacker must have valid user credentials on the affected device."
        }
      ],
      "exploits": [
        {
          "lang": "en",
          "value": "The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "format": "cvssV3_1"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-35",
              "description": "Path Traversal: \u0027.../...//\u0027",
              "lang": "en",
              "type": "cwe"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-05-06T16:16:05.322Z",
        "orgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
        "shortName": "cisco"
      },
      "references": [
        {
          "name": "cisco-sa-unity-rce-ssrf-hENhuASy",
          "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy"
        }
      ],
      "source": {
        "advisory": "cisco-sa-unity-rce-ssrf-hENhuASy",
        "defects": [
          "CSCwq36774"
        ],
        "discovery": "EXTERNAL"
      },
      "title": "Cisco Unity Connection Remote Code Execution Vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "d1c1063e-7a18-46af-9102-31f8928bc633",
    "assignerShortName": "cisco",
    "cveId": "CVE-2026-20034",
    "datePublished": "2026-05-06T16:16:05.322Z",
    "dateReserved": "2025-10-08T11:59:15.353Z",
    "dateUpdated": "2026-05-07T03:55:48.652Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-20034\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-05-06T17:27:38.082918Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-05-06T17:27:43.347Z\"}}], \"cna\": {\"title\": \"Cisco Unity Connection Remote Code Execution Vulnerability\", \"source\": {\"defects\": [\"CSCwq36774\"], \"advisory\": \"cisco-sa-unity-rce-ssrf-hENhuASy\", \"discovery\": \"EXTERNAL\"}, \"metrics\": [{\"format\": \"cvssV3_1\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.8, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"Cisco\", \"product\": \"Cisco Unity Connection\", \"versions\": [{\"status\": \"affected\", \"version\": \"12.5(1)\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU2\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU3\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU4\"}, {\"status\": \"affected\", \"version\": \"14\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU5\"}, {\"status\": \"affected\", \"version\": \"14SU1\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU6\"}, {\"status\": \"affected\", \"version\": \"14SU2\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU7\"}, {\"status\": \"affected\", \"version\": \"14SU3\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU8\"}, {\"status\": \"affected\", \"version\": \"14SU3a\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU8a\"}, {\"status\": \"affected\", \"version\": \"15\"}, {\"status\": \"affected\", \"version\": \"15SU1\"}, {\"status\": \"affected\", \"version\": \"14SU4\"}, {\"status\": \"affected\", \"version\": \"12.5(1)SU9\"}, {\"status\": \"affected\", \"version\": \"15SU2\"}, {\"status\": \"affected\", \"version\": \"15SU3\"}], \"defaultStatus\": \"unknown\"}], \"exploits\": [{\"lang\": \"en\", \"value\": \"The Cisco PSIRT is not aware of any public announcements or malicious use of the vulnerabilities that are described in this advisory.\"}], \"references\": [{\"url\": \"https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy\", \"name\": \"cisco-sa-unity-rce-ssrf-hENhuASy\"}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device.\\r\\n\\r\\nThis vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device.\u0026nbsp;To exploit this vulnerability, the attacker must have valid user credentials on the affected device.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"cwe\", \"cweId\": \"CWE-35\", \"description\": \"Path Traversal: \u0027.../...//\u0027\"}]}], \"providerMetadata\": {\"orgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"shortName\": \"cisco\", \"dateUpdated\": \"2026-05-06T16:16:05.322Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-20034\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-05-07T03:55:48.652Z\", \"dateReserved\": \"2025-10-08T11:59:15.353Z\", \"assignerOrgId\": \"d1c1063e-7a18-46af-9102-31f8928bc633\", \"datePublished\": \"2026-05-06T16:16:05.322Z\", \"assignerShortName\": \"cisco\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}

CERTFR-2026-AVI-0544

Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans les produits Cisco. Certaines d'entre elles permettent à un attaquant de provoquer une exécution de code arbitraire à distance, un déni de service à distance et une falsification de requêtes côté serveur (SSRF).

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

L'éditeur indique que les appareils SG350 et SG350X ne sont plus supportés et ne recevront pas de correctif, mais propose une mesure de contournement pour la vulnérabilité CVE-2026-20185.

Impacted products

Vendor	Product	Description
Cisco	N/A	Unity Connection versions antérieures à 14SU5
Cisco	N/A	NSO versions antérieures à 6.4.1.3
Cisco	N/A	Unity Connection versions 15.0 antérieures à 15SU4
Cisco	N/A	SG350 et SG350X toutes versions
Cisco	N/A	CNC versions antérieures à 7.2
Cisco	N/A	IoT Field Network Director versions antérieures à 5.0.0-117

References

Title

Publication Time

Tags

Bulletin de sécurité Cisco cisco-sa-nso-dos-7Egqyc	2026-05-06	vendor-advisory
Bulletin de sécurité Cisco cisco-sa-unity-rce-ssrf-hENhuASy	2026-05-06	vendor-advisory
Bulletin de sécurité Cisco cisco-sa-sg350-snmp-dos-GEFZr2Tj	2026-05-06	vendor-advisory
Bulletin de sécurité Cisco cisco-sa-iot-fnd-dos-n8N26Q4u	2026-05-06	vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Unity Connection versions ant\u00e9rieures \u00e0 14SU5",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "NSO versions ant\u00e9rieures \u00e0 6.4.1.3",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "Unity Connection versions 15.0 ant\u00e9rieures \u00e0 15SU4",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "SG350 et SG350X toutes versions",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "CNC versions ant\u00e9rieures \u00e0 7.2",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    },
    {
      "description": "IoT Field Network Director versions ant\u00e9rieures \u00e0 5.0.0-117",
      "product": {
        "name": "N/A",
        "vendor": {
          "name": "Cisco",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "L\u0027\u00e9diteur indique que les appareils SG350 et SG350X ne sont plus support\u00e9s et ne recevront pas de correctif, mais propose une mesure de contournement pour la vuln\u00e9rabilit\u00e9 CVE-2026-20185.",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-20188",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20188"
    },
    {
      "name": "CVE-2026-20034",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20034"
    },
    {
      "name": "CVE-2026-20035",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20035"
    },
    {
      "name": "CVE-2026-20167",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20167"
    },
    {
      "name": "CVE-2026-20169",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20169"
    },
    {
      "name": "CVE-2026-20185",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20185"
    },
    {
      "name": "CVE-2026-20168",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-20168"
    }
  ],
  "initial_release_date": "2026-05-07T00:00:00",
  "last_revision_date": "2026-05-07T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0544",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-05-07T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "D\u00e9ni de service \u00e0 distance"
    },
    {
      "description": "Ex\u00e9cution de code arbitraire \u00e0 distance"
    },
    {
      "description": "Falsification de requ\u00eates c\u00f4t\u00e9 serveur (SSRF)"
    },
    {
      "description": "Atteinte \u00e0 la confidentialit\u00e9 des donn\u00e9es"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans les produits Cisco. Certaines d\u0027entre elles permettent \u00e0 un attaquant de provoquer une ex\u00e9cution de code arbitraire \u00e0 distance, un d\u00e9ni de service \u00e0 distance et une falsification de requ\u00eates c\u00f4t\u00e9 serveur (SSRF).",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans les produits Cisco",
  "vendor_advisories": [
    {
      "published_at": "2026-05-06",
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-nso-dos-7Egqyc",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-nso-dos-7Egqyc"
    },
    {
      "published_at": "2026-05-06",
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-unity-rce-ssrf-hENhuASy",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy"
    },
    {
      "published_at": "2026-05-06",
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-sg350-snmp-dos-GEFZr2Tj",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sg350-snmp-dos-GEFZr2Tj"
    },
    {
      "published_at": "2026-05-06",
      "title": "Bulletin de s\u00e9curit\u00e9 Cisco cisco-sa-iot-fnd-dos-n8N26Q4u",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-iot-fnd-dos-n8N26Q4u"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2026-20034 (GCVE-0-2026-20034)

Vulnerability from cvelistv5

CERTFR-2026-AVI-0544

Vulnerability from certfr_avis

Solutions

Tags

Sightings

Nomenclature