CVE-2018-15443: cisco cisco firepower management center Uncontrolled Resource Consumption
Vulnerability summary
CVE-2018-15443 is a high (CVSS 7.5) Uncontrolled Resource Consumption vulnerability in cisco cisco firepower management center. EPSS estimates a 2.77% chance of exploitation in the next 30 days, higher than 86% of scored vulnerabilities.
Timeline
- 08-11-2018PublishedVulnerability first disclosed.
- 26-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to bypass a configured Intrusion Prevention System (IPS) rule that inspects certain types of TCP traffic. The vulnerability is due to incorrect TCP retransmission handling. An attacker could exploit this vulnerability by sending a crafted TCP connection request through an affected device. A successful exploit could allow the attacker to bypass configured IPS rules and allow uninspected traffic onto the network.
CVSS metrics
3 scores · 2 sources · 2 versions- CVE.orgCNA5.8MediumCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:NDiffers
EPSS trend
Probability
2.77%
Chance of exploitation in the next 30 days
Percentile
86%
Versus all other CVEs
30-day change
0.00 pp
From 2.77% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco2 products
1 vendor · 2 products
References
2 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20181107-fde-tcp-bypassVendor AdvisoryX Refsource CISCO