HTTP Request Smuggling in Cisco Webex Video Mesh

Published: 2020-02-10
Risk Medium
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-20372
Exploitation vector Network
Public exploit N/A
Vulnerable software
Cisco Webex Video Mesh
Server applications / Other server solutions

Vendor Cisco Systems, Inc

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Inconsistent interpretation of HTTP requests

EUVDB-ID: #VU24230

Risk: Medium

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-20372

CWE-ID: CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Exploit availability: No


The vulnerability allows a remote attacker to perform HTTP request smuggling attacks.

The vulnerability exists with certain error_page configurations. A remote attacker can read unauthorized web pages in environments where NGINX is being fronted by a load balancer.


Install updates from vendor's website.

Vulnerable software versions

Cisco Webex Video Mesh: 2018.10.04.1692m - 2020.01.12.2091m

CPE2.3 External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.