CVE-2021-34764

Cisco Firepower Management Center Software Cross-Site Scripting and Open Redirect Vulnerabilities

MEDIUM
6.1
CVSS Score
Published: October 27, 2021 at 06:55 PM UTC
Updated: August 11, 2026 at 07:37 PM UTC
4 products affected across 1 vendorSecure Firewall Threat DefenseFirepower Management Center Virtual ApplianceSourcefire Defense Center

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Severity
MEDIUM6.1
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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.

Affected

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
CHANGED
Confidentiality
LOW
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-601CWE-79

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