XSS in Cisco Firepower Management Center
CVE-2021-34763
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.
Vulnerability class: Open Redirect
Published · last modified .
CVSS v3 metric
CVSS v3 base score 4.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (40.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 40th percentile — 40.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: +0.000
Affected products
- Cisco Firepower Management Center
- Cisco Firepower Management Center Virtual Appliance — versions 6.1.0, 6.2.0, 6.2.3
- Cisco Firepower Threat Defense
- Cisco Secure Firewall Threat Defense
- Cisco Sourcefire Defense Center — versions 6.1.0, 6.2.0, 6.2.3
Weakness classification (CWE)
References
- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-… (vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-34763?
- CVE-2021-34763 is a medium-severity vulnerability in Cisco Firepower Management Center, classified under URL Redirection to Untrusted Site (Open Redirect). CVSS score: 4.8/10. Published 2021-10-27.
- How severe is CVE-2021-34763?
- Medium severity. CVSS v3 base score is 4.8 out of 10.