4.8mediumMedium

CVE-2021-34764

Cisco Firepower Management Center Virtual Appliance

Multiple vulnerabilities in the web-based management interface of Cisco Firepower Management Center (FMC) Software could allow an attacker to execute a cross-site scripting (XSS) attack or an open redirect attack. For more information about these vulnerabilities, see the Details section of this advisory.

Exploitation status

  • A vendor advisory or patch reference has been published.

What the metrics mean

  • It is reachable over a network, without needing local access.
  • For an attacker who can reach it, no special conditions are needed to exploit it.
  • To exploit it, an administrative account is needed.
  • Beyond that, someone has to be persuaded to take an action first.

Scoring

CVSS
4.8 (v3.1)
Vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N
Weakness
CWE-601
Assigned by
psirt@cisco.com

Dates

Published
2021-10-27
Last modified
2026-08-11
Sources
NVD

Affected products

  • Cisco Firepower Management Center Virtual Appliance6.1.0, 6.2.0, 6.2.3, 6.3.0, 6.4.0, 6.5.0, 6.6.0, 6.6.1, 6.7.0, 7.0.0, 7.1.0
  • Cisco Secure Firewall Threat Defense- 6.4.0.13, 6.5.0 - 6.6.5, 6.7.0 - 6.7.0.3
  • Cisco Sourcefire Defense Center6.1.0, 6.2.0, 6.2.3, 6.3.0, 6.4.0, 6.5.0, 6.6.0, 6.6.1, 6.7.0, 7.0.0, 7.1.0

As listed in the NVD configuration data. Not a statement about your estate.

References