CVE-2016-6439: cisco secure_firewall_management_center Resource Management Errors
Vulnerability summary
CVE-2016-6439 is a high (CVSS 7.5) Resource Management Errors vulnerability in cisco secure_firewall_management_center. EPSS estimates a 1.63% chance of exploitation in the next 30 days, higher than 76% of scored vulnerabilities.
Timeline
- 27-10-2016PublishedVulnerability first disclosed.
- 06-08-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the detection engine reassembly of HTTP packets for Cisco Firepower System Software before 6.0.1 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition due to the Snort process unexpectedly restarting. The vulnerability is due to improper handling of an HTTP packet stream. An attacker could exploit this vulnerability by sending a crafted HTTP packet stream to the detection engine on the targeted device. An exploit could allow the attacker to cause a DoS condition if the Snort process restarts and traffic inspection is bypassed or traffic is dropped.
CVSS metrics
2 scores · 1 source · 2 versionsEPSS trend
Probability
1.63%
Chance of exploitation in the next 30 days
Percentile
76%
Versus all other CVEs
30-day change
+0.16 pp
From 1.47% on 21-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Cisco1 product
- secure_firewall_management_center5.3.0 | 5.3.0.2 | 5.3.0.3 | 5.3.0.4 | 5.3.1 | 5.3.1.3 | 5.3.1.4 | 5.3.1.5 | 5.3.1.6 | 5.4.0 | 5.4.0.2 | 5.4.1 | 5.4.1.1 | 5.4.1.2 | 5.4.1.3 | 5.4.1.4 | 5.4.1.5 | 5.4.1.6 | 5.4_base | 6.0.0 | 6.0.0.0 | 6.0.0.1 | 6.0.1 | 6.0_base
1 vendor · 1 product
References
3 links- tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20161019-fpsnortX Refsource CONFIRMVendor Advisory