Resource exhaustion in Cisco Firepower Threat Defense Software
CVE-2024-20351
A vulnerability in the TCP/IP traffic handling function of the Snort Detection Engine of Cisco Firepower Threat Defense (FTD) Software and Cisco FirePOWER Services could allow an unauthenticated, remote attacker to cause legitimate network…
Vulnerability class: DoS (Denial of Service)
EPSS: 0.014 (80.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.
Affected products
- Cisco Firepower Threat Defense Software — versions 6.2.3.14, 6.4.0.1, 6.2.3.7
Weakness classification (CWE)
Public proof-of-concept exploits
References
- cisco-sa-sa-ftd-snort-fw-BCJTZPMu
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO
- Cisco Event Response: October 2024 Semiannual Cisco ASA, FMC, and FTD Software Security Advisory Bundled Publication
- https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-xss-yjj7ZjVq
Frequently asked questions
- What is CVE-2024-20351?
- CVE-2024-20351 is a high-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Uncontrolled Resource Consumption. CVSS score: 8.6/10. Published 2024-10-23.
- How severe is CVE-2024-20351?
- High severity. CVSS v3 base score is 8.6 out of 10.
- Is CVE-2024-20351 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.