Vulnerability in Cisco Firepower Threat Defense Software
CVE-2024-20342
Multiple Cisco products are affected by a vulnerability in the rate filtering feature of the Snort detection engine that could allow an unauthenticated, remote attacker to bypass a configured rate limiting filter. This vulnerability is due to an incorrect connection count comparison. An attacker could exploit this vulnerability by sending traffic through an affected device at a rate that exceeds a configured rate filter. A successful exploit could allow the attacker to successfully bypass the rate filter. This could allow unintended traffic to enter the network protected by the affected device.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L.
EPSS exploit prediction
EPSS: 0.005 (41.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 41st percentile — 41.0% 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 Threat Defense Software — versions 7.0.0, 7.0.0.1, 7.0.1
- Cisco Firepower Threat Defense Software — versions 7.1.0, 7.3.0
- Cisco Secure Firewall Threat Defense — versions 7.1.0, 7.3.0
- Cisco Snort
Weakness classification (CWE)
Public proof-of-concept exploits
References
Frequently asked questions
- What is CVE-2024-20342?
- CVE-2024-20342 is a medium-severity vulnerability in Cisco Firepower Threat Defense Software, classified under CWE-1025. CVSS score: 5.8/10. Published 2024-10-23.
- How severe is CVE-2024-20342?
- Medium severity. CVSS v3 base score is 5.8 out of 10.
- Is CVE-2024-20342 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.