SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

CVE-2019-1877

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.

MEDIUM 6.5EPSS 1.44%

Does this matter?

Lower severity and a low EPSS score (1.44%). Track it; it rarely justifies an emergency change on its own.

Description

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.

CVSS 3.1
6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
EPSS
1.44% probability · 73th percentile
Public exploits
None in Exploit-DB
CISA KEV
Not listed
Weakness
CWE-200, CWE-287
Affected
cisco/enterprise chat and email
Source
psirt@cisco.com
EPSS trend
0%3%5%26 October 2026: 1.44%26 October 202626 October 2026

EPSS 1.4% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.