CVE-2024-20342: cisco cisco firepower threat defense software Comparison Using Wrong Factors
Vulnerability summary
CVE-2024-20342 is a high (CVSS 8.6) Comparison Using Wrong Factors vulnerability in cisco cisco firepower threat defense software. EPSS estimates a 0.49% chance of exploitation in the next 30 days, higher than 41% of scored vulnerabilities.
Timeline
- 23-10-2024PublishedVulnerability first disclosed.
- 13-01-2025Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
2 scores · 2 sources · 1 version- CVE.orgCNA5.8MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:LDiffers
EPSS trend
Probability
0.49%
Chance of exploitation in the next 30 days
Percentile
41%
Versus all other CVEs
30-day change
0.00 pp
From 0.49% on 19-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco3 products
- cisco firepower threat defense software7.0.0 | 7.0.0.1 | 7.0.1 | 7.1.0 | 7.0.1.1 | 7.1.0.1 | 7.0.2 | 7.2.0 | 7.0.2.1 | 7.0.3 | 7.1.0.2 | 7.2.0.1 | 7.0.4 | 7.2.1 | 7.0.5 | 7.3.0 | 7.2.2 | 7.2.3 | 7.3.1 | 7.1.0.3 | 7.2.4 | 7.0.6 | 7.2.5 | 7.2.4.1 | 7.3.1.1 | 7.4.0 | 7.0.6.1 | 7.2.5.1 | 7.4.1 | 7.4.1.1 | 7.2.5.2 | 7.3.1.2
- secure_firewall_threat_defense< 7.0.6.2 | ≥ 7.2.0, < 7.2.6 | ≥ 7.4.0, < 7.4.2 | 7.1.0 | 7.3.0
- snort≥ 3.0.0.0, < 3.1.74.0
1 vendor · 3 products
References
1 links- sec.cloudapps.cisco.com/security/…Vendor Advisory