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.

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Fixes

Solution

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Workaround

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History

Wed, 06 May 2026 16:45:00 +0000

Type Values Removed Values Added
Description 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.
Title Cisco Unity Connection Remote Code Execution Vulnerability
Weaknesses CWE-35
References
Metrics cvssV3_1

{'score': 8.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: cisco

Published:

Updated: 2026-05-06T17:27:50.039Z

Reserved: 2025-10-08T11:59:15.353Z

Link: CVE-2026-20034

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-06T17:16:20.093

Modified: 2026-05-06T17:16:20.093

Link: CVE-2026-20034

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-06T17:30:08Z

Weaknesses