CVE-2026-20078: 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-2026-20078?

The severity of CVE-2026-20078 is considered high due to its potential for unauthorized file access.

2

How do I fix CVE-2026-20078?

Fixing CVE-2026-20078 involves applying the latest security patches provided by Cisco for Unity Connection.

3

Who is affected by CVE-2026-20078?

Administrators of Cisco Unity Connection are the primary individuals affected by CVE-2026-20078.

4

What types of files can be downloaded due to CVE-2026-20078?

CVE-2026-20078 allows an attacker to download arbitrary files from the affected Cisco Unity Connection system.

5

Can CVE-2026-20078 be exploited remotely?

Yes, CVE-2026-20078 can be exploited by an authenticated remote attacker with administrative credentials.

Contact

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