PT-2026-37648 · Cisco · Cisco Unity Connection

Published 2026-05-06 · Updated 2026-05-06 · CVE-2026-20034

Mitre

CVSS v3.1

8.8

High

Base vector

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

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.

Fix

Weakness Enumeration

CWE-35

Related Identifiers

CVE-2026-20034

Affected Products

Cisco Unity Connection

References · 2

• https://nvd.nist.gov/vuln/detail/CVE-2026-20034 · Security Note
• https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy · Vendor Advisory