Vulnerability in Cisco Secure Firewall Management Center

CVE-2016-6439

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.

EPSS: 0.016 (73.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2016-6439?
CVE-2016-6439 is a high-severity vulnerability in Cisco Secure Firewall Management Center, classified under CWE-399. CVSS score: 7.5/10. Published 2016-10-27.
How severe is CVE-2016-6439?
High severity. CVSS v3 base score is 7.5 out of 10.