CVE-2020-27127: Cisco Jabber

Critical severity, CVSS 9.9. EPSS: 1.4% chance of exploitation in the next 30 days.

Multiple vulnerabilities in Cisco Jabber for Windows, Jabber for MacOS, and Jabber for mobile platforms could allow an attacker to execute arbitrary programs on the underlying operating system (OS) with elevated privileges or gain access to sensitive information. For more information about these vulnerabilities, see the Details section of this advisory.

Affected products

• Cisco Jabber: version 12.9(0) only; version 12.9(1) only; version 12.9(2) only; version 12.9(3) only
• Cisco Jabber For Mobile Platforms: version 12.9(0) only; version 12.9(1) only; version 12.9(2) only; version 12.9(3) only

Published 2020-12-11. Last modified 2026-06-17.