CVE-2026-20078 MEDIUM

CVE-2026-20078: Cisco Unity Connection Arbitrary File Download Vulnerability

Vendor Cisco
Product Cisco Unity Connection
Weakness CWE-23
Published April 15, 2026
Last update April 15, 2026

CVSS base score

6.5/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality High
Integrity None

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

April 15, 2026 CVE published
April 15, 2026 Record updated