CVE-2019-1877: Cisco Enterprise Chat And Email

Medium severity, CVSS 6.5. EPSS: 1.4% chance of exploitation in the next 30 days.

A vulnerability in the HTTP API of Cisco Enterprise Chat and Email could allow an unauthenticated, remote attacker to download files attached through chat sessions. The vulnerability is due to insufficient authentication mechanisms on the file download function of the API. An attacker could exploit this vulnerability by sending a crafted request to the API. A successful exploit could allow the attacker to download files that other users attach through the chat feature. This vulnerability affects versions prior to 12.0(1)ES1.

Affected products

• Cisco Enterprise Chat And Email: version 11.6(1)es9 only

Published 2019-11-05. Last modified 2026-06-17.