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CVE-2026-20034

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CVE-2026-20034

Published: May 6, 2026

Modified: May 7, 2026

PUBLISHED

CVSS v3.1

8.8

HIGH

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.

VendorProductVersions

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

+16 more versions

Weaknesses (CWE)

CWE-35

CVSS v3.1 Details

CVSS v3.1 Vector

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

References

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