CVE-2026-20081: Cisco Unity Connection Arbitrary File Download Vulnerability

Published Apr 15, 2026
·
Updated

Multiple vulnerabilities in Cisco Unity Connection could allow an authenticated, remote attacker to download arbitrary files from an affected system. To exploit these vulnerabilities, the attacker must have valid administrative credentials.  These vulnerabilities are due to improper sanitization of user input to the web-based management interface. An attacker could exploit these vulnerabilities by sending a crafted HTTPS request. A successful exploit could allow the attacker to download arbitrary files from an affected system.

Affected Software

13 affected components
Cisco Unity Connection
Cisco Unity Connection<=12.5
Cisco Unity Connection=14.0
Cisco Unity Connection=14su1
Cisco Unity Connection=14su2
Cisco Unity Connection=14su3
Cisco Unity Connection=14su3a
Cisco Unity Connection=14su4
Cisco Unity Connection=14su5
Cisco Unity Connection=15.0
Cisco Unity Connection=15su1
Cisco Unity Connection=15su2
Cisco Unity Connection=15su3

Event History

Apr 15, 2026
CVE Published
via MITRE·04:03 PM
Data Sourced
via MITRE·04:03 PM
DescriptionSeverityWeakness
Data Sourced
via NVD·05:17 PM
DescriptionSeverityWeaknessAffected Software
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Frequently Asked Questions

1

What is the severity of CVE-2026-20081?

The severity of CVE-2026-20081 is classified as high due to the potential for unauthorized file downloads.

2

How do I fix CVE-2026-20081?

To fix CVE-2026-20081, apply the latest patches and updates provided by Cisco for affected versions of Unity Connection.

3

Who is affected by CVE-2026-20081?

CVE-2026-20081 affects systems running Cisco Unity Connection that have administrative access.

4

What type of attack does CVE-2026-20081 facilitate?

CVE-2026-20081 facilitates arbitrary file download attacks by authenticated remote attackers.

5

What are the requirements for exploiting CVE-2026-20081?

To exploit CVE-2026-20081, an attacker must have valid administrative credentials for the Cisco Unity Connection system.

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