---
id: CVE-2026-20035
title: "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.\r\n\r\nThis vulnerability is due to improper input validation for specific …"
summary: "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.\r\n\r\nThis vulnerability is due to improper input validation for specific …"
severity: high
cvss: 7.2
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:N'
cwe:
  - CWE-918
vendor: cisco
product: unity_connection
affected:
  - unity_connection < 14.0
  - unity_connection = 14.0
  - unity_connection = 14su1
  - unity_connection = 14su2
  - unity_connection = 14su3
  - unity_connection = 14su4
  - unity_connection = 15.0
  - unity_connection = 15su1
  - unity_connection = 15su2
  - unity_connection = 15su3
patched:
  - unity_connection 14.0
published: '2026-05-06'
updated: '2026-07-08'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-20035'
references:
  - url: >-
      https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-unity-rce-ssrf-hENhuASy
    label: psirt@cisco.com
tags:
  - nvd
epss: 0.00304
epssPercentile: 0.23383
ingestedAt: '2026-07-08T13:51:10.720Z'
---

## Overview

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.

## Affected

- `unity_connection < 14.0`
- `unity_connection = 14.0`
- `unity_connection = 14su1`
- `unity_connection = 14su2`
- `unity_connection = 14su3`
- `unity_connection = 14su4`
- `unity_connection = 15.0`
- `unity_connection = 15su1`
- `unity_connection = 15su2`
- `unity_connection = 15su3`

## Remediation

Upgrade past the affected range:

- `unity_connection 14.0`