#VU49582 XML Entity Expansion

Published: 2021-01-13 | Updated: 2021-01-18

Vulnerability identifier: #VU49582

Vulnerability risk: Low

CVSSv3.1: 3.8 [CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1267


Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Cisco Firepower Management Center
Client/Desktop applications / Antivirus software/Personal firewalls



The vulnerability allows a remote attacker to perform a denial o service (DoS) attack. 

The vulnerability exists due to improper restrictions on XML entities in the dashboard widget. A remote authenticated attacker can craft an XML-based widget on an affected server and cause a denial of service condition on the target system.

Install updates from vendor's website.

Vulnerable software versions

Cisco Firepower Management Center: before 6.6.1


External links

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote authenticated user via the Internet.

Is there known malware, which exploits this vulnerability?

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

Latest bulletins with this vulnerability