CVE-2026-20034: Cisco Unity Connection Remote Code Execution Vulnerability
A vulnerability in the web-based management interface of Cisco Unity Connection could allow an authenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to insufficient validation of user-supplied input. An attacker could exploit this vulnerability by submitting a crafted API request. A successful exploit could allow the attacker to execute arbitrary code as root, possibly resulting in the complete compromise of a targeted device. To exploit this vulnerability, the attacker must have valid user credentials on the affected device.
Affected Software
Event History
Frequently Asked Questions
What is the severity of CVE-2026-20034?
CVE-2026-20034 is considered a critical vulnerability due to its potential for remote code execution.
How do I fix CVE-2026-20034?
To fix CVE-2026-20034, you should apply the latest security patches released by Cisco for Unity Connection.
Who is affected by CVE-2026-20034?
CVE-2026-20034 affects users of Cisco Unity Connection that have the web-based management interface enabled.
What type of attack does CVE-2026-20034 allow?
CVE-2026-20034 allows an authenticated remote attacker to execute arbitrary code on the affected device.
How can I determine if my Cisco Unity Connection is vulnerable to CVE-2026-20034?
You can determine vulnerability to CVE-2026-20034 by checking if your Cisco Unity Connection is running an affected version and lacks the latest security updates.