Improper Certificate Validation in Cisco Systems, Inc products - CVE-2021-1471
Published: March 25, 2021
Vulnerability identifier: #VU51727
CSH Severity: Medium
CVSS v4: 6.3 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N]
CVE-ID: CVE-2021-1471
CWE-ID: CWE-295
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to compromise the target system.
The vulnerability exists due to improper validation of certificates. A remote attacker can use a specially crafted certificate and inspect or modify connections between the Cisco Jabber client and a server.
Affected software
Cisco Jabber for Windows
Cisco Jabber for MacOS
Cisco Jabber for Android and iOS
Cisco Jabber for MacOS
Cisco Jabber for Android and iOS
How to mitigate CVE-2021-1471
Install updates from vendor's website.
Cisco Jabber for Windows - addressed in versions 12.1.5, 12.5.4, 12.6.5, 12.7.4, 12.8.5, 12.9.5
Cisco Jabber for MacOS - addressed in versions 12.8.7, 12.9.6
Cisco Jabber for MacOS - addressed in versions 12.8.7, 12.9.6