Vulnerability-Lookup

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

Vulnerability from cvelistv5 – Published: 2026-05-06 16:16 – Updated: 2026-05-07 03:55

Title

Cisco Unity Connection Remote Code Execution Vulnerability

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.

Severity

8.8 (High)


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

SSVC

Exploitation: none Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-05-06 00:00 UTC

CWE

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

Assigner

cisco mitre root

References

1 reference

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

Impacted products

1 product

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

Show details on NVD website

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}

BDU:2026-06544 (CVE-2026-20034)

Vulnerability from fstec – Published: 2026-05-13 – Updated: 2026-05-13 – View on bdu.fstec.ru Fixed

Title

Уязвимость веб-интерфейса управления интегрированной системы обмена сообщениями Cisco Unity Connection, позволяющая нарушителю выполнить произвольный код

Summary

Уязвимость веб-интерфейса управления интегрированной системы обмена сообщениями Cisco Unity Connection связана с неверным ограничением имени пути к каталогу. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, выполнить произвольный код

Severity

9.0 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:S/C:C/I:C/A:C

8.8 (High) CVSS 3.1


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

Class

Code vulnerability

Status

Confirmed by the vendor

Exploitation

Resource manipulation

Incidents

Being clarified

Remediation

Software update

CWE

CWE-35 - Обход пути: ‘…/…//’

Aliases

CVE-2026-20034

References

1 reference

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

Impacted products

1 product from 2 vendors

Vendors

Cisco Systems, Inc.

Products

Unity Connection

Versions

до 12.5 включительно (Unity Connection), от 14.0 до 14SU5 (Unity Connection), от 15.0 до 15SU4 (Unity Connection)

Product types

Network software

Mitigations

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

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:S/C:C/I:C/A:C",
  "CVSS 3.0": "AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
  "CVSS 4.0": null,
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Cisco Systems, Inc.",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 12.5 \u0432\u043a\u043b\u044e\u0447\u0438\u0442\u0435\u043b\u044c\u043d\u043e (Unity Connection), \u043e\u0442 14.0 \u0434\u043e 14SU5 (Unity Connection), \u043e\u0442 15.0 \u0434\u043e 15SU4 (Unity Connection)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "06.05.2026",
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  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "13.05.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-06544",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-20034",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043a\u043e\u0434\u0430",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Unity Connection",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": null,
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u0435\u0431-\u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u043d\u0442\u0435\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u0431\u043c\u0435\u043d\u0430 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f\u043c\u0438 Cisco Unity Connection, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u041e\u0431\u0445\u043e\u0434 \u043f\u0443\u0442\u0438: \u2018\u2026/\u2026//\u2019 (CWE-35)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432\u0435\u0431-\u0438\u043d\u0442\u0435\u0440\u0444\u0435\u0439\u0441\u0430 \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u0438\u043d\u0442\u0435\u0433\u0440\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u043e\u0431\u043c\u0435\u043d\u0430 \u0441\u043e\u043e\u0431\u0449\u0435\u043d\u0438\u044f\u043c\u0438 Cisco Unity Connection \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u043d\u0435\u0432\u0435\u0440\u043d\u044b\u043c \u043e\u0433\u0440\u0430\u043d\u0438\u0447\u0435\u043d\u0438\u0435\u043c \u0438\u043c\u0435\u043d\u0438 \u043f\u0443\u0442\u0438 \u043a \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0443. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u0432\u044b\u043f\u043e\u043b\u043d\u0438\u0442\u044c \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u043b\u044c\u043d\u044b\u0439 \u043a\u043e\u0434",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041c\u0430\u043d\u0438\u043f\u0443\u043b\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u0441\u0443\u0440\u0441\u0430\u043c\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u0421\u0435\u0442\u0435\u0432\u043e\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0435 \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u043e",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-35",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 8,8)"
}

CERTFR-2026-AVI-0544

Vulnerability from certfr_avis - Published: 2026-05-07 - Updated: 2026-05-07

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

CISCO-SA-UNITY-RCE-SSRF-HENHUASY

Vulnerability from csaf_cisco - Published: 2026-05-06 16:00 - Updated: 2026-05-06 16:00

Summary

Cisco Unity Connection Remote Code Execution and Server-Side Request Forgery Vulnerabilities

Scope

2 vulnerabilities in this advisory, including CVE-2026-20034.

CVE-2026-20034

8.8 (High)


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

Known affected: 1 product

https://software.cisco.com

Open the full advisory

FKIE_CVE-2026-20034

Vulnerability from fkie_nvd - Published: 2026-05-06 17:16 - Updated: 2026-07-01 16:01

Severity

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

Summary

References

	URL	Tags
	psirt@cisco.com	https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy	Vendor Advisory

Impacted products

Vendor	Product	Version
cisco	unity_connection	*
cisco	unity_connection	14.0
cisco	unity_connection	14su1
cisco	unity_connection	14su2
cisco	unity_connection	14su3
cisco	unity_connection	14su4
cisco	unity_connection	15.0
cisco	unity_connection	15su1
cisco	unity_connection	15su2
cisco	unity_connection	15su3

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "defaultStatus": "unknown",
          "product": "Cisco Unity Connection",
          "vendor": "Cisco",
          "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"
            }
          ]
        }
      ],
      "source": "psirt@cisco.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "6313AB2B-8CBB-48FF-BCBF-B24DE98855EF",
              "versionEndExcluding": "14.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:14.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "A85D56C0-D4A3-43A7-9CD1-FCEB6C8AEF66",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:14su1:*:*:*:*:*:*:*",
              "matchCriteriaId": "774C01A1-9328-45E8-9BDD-470A10BC3C2A",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:14su2:*:*:*:*:*:*:*",
              "matchCriteriaId": "CD8AB4B5-12C2-4F02-A4C3-4B8C06AFFD53",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:14su3:*:*:*:*:*:*:*",
              "matchCriteriaId": "181866CE-6279-4422-8EF8-7A12DB5B21F6",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:14su4:*:*:*:*:*:*:*",
              "matchCriteriaId": "D09F3655-B513-48F6-82A8-F0F946C52D25",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:15.0:*:*:*:*:*:*:*",
              "matchCriteriaId": "97CC6719-1A7F-48BA-8014-802E235ED80D",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:15su1:*:*:*:*:*:*:*",
              "matchCriteriaId": "2C9412EC-282C-4926-83F8-932E24E0FC22",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:15su2:*:*:*:*:*:*:*",
              "matchCriteriaId": "37EFE547-7D3C-4D71-8D46-2C5734B9D64B",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:cisco:unity_connection:15su3:*:*:*:*:*:*:*",
              "matchCriteriaId": "CE6AF25B-E6F9-4E15-902D-4516DFE8C8E2",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "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."
    }
  ],
  "id": "CVE-2026-20034",
  "lastModified": "2026-07-01T16:01:11.203",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "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"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "psirt@cisco.com",
        "type": "Secondary"
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "id": "CVE-2026-20034",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "total"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2026-05-06T00:00:00+00:00",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2026-05-06T17:16:20.093",
  "references": [
    {
      "source": "psirt@cisco.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy"
    }
  ],
  "sourceIdentifier": "psirt@cisco.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-35"
        }
      ],
      "source": "psirt@cisco.com",
      "type": "Secondary"
    }
  ]
}

GHSA-WFVP-XW34-RHWQ

Vulnerability from github – Published: 2026-05-06 18:30 – Updated: 2026-05-06 18:30

Details

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.

Severity

8.8 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-20034"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-35"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-05-06T17:16:20Z",
    "severity": "HIGH"
  },
  "details": "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.\n\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.",
  "id": "GHSA-wfvp-xw34-rhwq",
  "modified": "2026-05-06T18:30:30Z",
  "published": "2026-05-06T18:30:30Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-20034"
    },
    {
      "type": "WEB",
      "url": "https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

NCSC-2026-0136

Vulnerability from csaf_ncscnl - Published: 2026-05-08 13:08 - Updated: 2026-05-08 13:08

Summary

Kwetsbaarheden verholpen in Cisco Unity Connection

Scope

2 vulnerabilities in this advisory, including CVE-2026-20034.

CVE-2026-20034

Multiple vulnerabilities in Cisco Unity Connection's web management interface allow authenticated remote attackers with valid credentials to execute arbitrary code as root or perform server-side request forgery attacks, compromising the device.

8.8 (High)


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

Known affected: 1 product

Open the full advisory

WID-SEC-W-2026-1388

Vulnerability from csaf_certbund - Published: 2026-05-06 22:00 - Updated: 2026-05-06 22:00

Summary

Cisco Unity Connection: Mehrere Schwachstellen

Severity

Hoch

Scope

2 vulnerabilities in this advisory, including CVE-2026-20034.

CVE-2026-20034

Known affected: 2 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.

Detection rules are retrieved from Rulezet.

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

BDU:2026-06544 (CVE-2026-20034)

CERTFR-2026-AVI-0544

Solutions

CISCO-SA-UNITY-RCE-SSRF-HENHUASY

FKIE_CVE-2026-20034

GHSA-WFVP-XW34-RHWQ

NCSC-2026-0136

WID-SEC-W-2026-1388

Tags

Sightings

Nomenclature

Related by attack behaviour