XXE in Cisco Firepower Management Center
CVE-2021-1267
A vulnerability in the dashboard widget of Cisco Firepower Management Center (FMC) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to improper restrictions on XML entities. An attacker could exploit this vulnerability by crafting an XML-based widget on an affected server. A successful exploit could cause increased memory and CPU utilization, which could result in a DoS condition.
EPSS: 0.010 (59.5th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L.
Affected products
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-1267?
- CVE-2021-1267 is a medium-severity vulnerability in Cisco Firepower Management Center, classified under Improper Restriction of Recursive Entity References in DTDs (XML Entity Expansion). CVSS score: 4.3/10. Published 2021-01-13.
- How severe is CVE-2021-1267?
- Medium severity. CVSS v3 base score is 4.3 out of 10.