CVE-2026-20035

High

Description

A vulnerability in the web UI of Cisco Unity Connection Web Inbox could allow an unauthenticated, remote attacker to conduct SSRF attacks through an affected device. This vulnerability is due to improper input validation for specific HTTP requests. An attacker could exploit this vulnerability by sending a crafted HTTP request to an affected device. A successful exploit could allow the attacker to send arbitrary network requests that are sourced from the affected device.

SeverityHigh
CVSS7.2
Exploit probability—
ProductCisco Unity Connection
PublishedMay 6, 2026
First seenMay 6, 2026

How to fix

Update
  • cisco unity_connection14.0 or later

Affected products

ProductAffected versionsFixed in
cisco unity_connectionv < 14.0, 14.0, 14su1, 14su2, 14su3, 14su4, 15.0, 15su1, 15su2, 15su314.0

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