CVE-2020-3495

CRITICAL

Cisco Jabber 12.1-12.1.3 - Authenticated Remote Code Execution via XMPP Message

Title source: llm
STIX 2.1

Description

A vulnerability in Cisco Jabber for Windows could allow an authenticated, remote attacker to execute arbitrary code. The vulnerability is due to improper validation of message contents. An attacker could exploit this vulnerability by sending specially crafted Extensible Messaging and Presence Protocol (XMPP) messages to the affected software. A successful exploit could allow the attacker to cause the application to execute arbitrary programs on the targeted system with the privileges of the user account that is running the Cisco Jabber client software, possibly resulting in arbitrary code execution.

References (1)

Core 1
Core References

Scores

CVSS v3 9.9
EPSS 0.0477
EPSS Percentile 89.6%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation none
Automatable no
Technical Impact total

Details

CWE
CWE-20
Status published
Products (1)
cisco/jabber 12.1 - 12.1.3
Published Sep 04, 2020
Tracked Since Feb 18, 2026