Vulnerability in Cisco Firepower Threat Defense Software
CVE-2024-20363
Multiple Cisco products are affected by a vulnerability in the Snort Intrusion Prevention System (IPS) rule engine that could allow an unauthenticated, remote attacker to bypass the configured rules on an affected system. This vulnerability is due to incorrect HTTP packet handling. An attacker could exploit this vulnerability by sending crafted HTTP packets through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
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:L/A:N.
EPSS exploit prediction
EPSS: 0.004 (28.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 28th percentile — 28.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Cisco Firepower Threat Defense Software — versions 7.4.0
- Cisco Utd Snort Ips Engine Software — versions 17.6.4, 17.6.5, 17.12.1a
- Cisco Firepower Threat Defense — versions 7.4.0
- Cisco Secure Firewall Threat Defense — versions 7.4.0
- Cisco Snort
- Cisco Unified Threat Defense Snort Intrusion Prevention System Engine — versions 17.6.4, 17.6.5, 17.12.1a
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2024-20363?
- CVE-2024-20363 is a medium-severity vulnerability in Cisco Firepower Threat Defense Software, classified under Authentication Bypass by Spoofing. CVSS score: 5.8/10. Published 2024-05-22.
- How severe is CVE-2024-20363?
- Medium severity. CVSS v3 base score is 5.8 out of 10.