Cisco Unity Connection vulnerabilities
65 published vulnerabilities in Cisco Unity Connection, 2 of them exploited in the wild. The most were published in 2015 (11), and 8 so far in 2026.
Cisco Unity Connection vulnerabilities by year
2012
2013
2014
2015
2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
Most exploited Cisco Unity Connection vulnerabilities
- CVE-2021-44228 Apache Log4j2 Remote Code Execution
- CVE-2026-20045 Cisco Unified Communications Products Code Injection
- CVE-2024-20253 Deserialization in Cisco Packaged Contact Center Enterprise
- CVE-2017-12337 Hardcoded credentials in Cisco Voice Operating System
- CVE-2014-3333 Privilege escalation in n/a
- CVE-2012-0366 Privilege escalation in n/a
- CVE-2026-20034 Cisco Unity Connection Remote Code Execution Vulnerability
- CVE-2021-1362 Cisco Unified Communications Products Remote Code Execution Vulnerability
- CVE-2023-20259 Denial of service in Cisco Emergency Responder
- CVE-2012-3060 Denial of service in n/a
- CVE-2012-0367 Denial of service in n/a
- CVE-2017-6779 Denial of service in Multiple Cisco Products unknown
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