CVE-2016-6439

HighCVSS 7.5/10Last modified Jun 17, 2026

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.

Metrics

CVSS 3.0 7.5/10CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 27, 2016
Last modified
Jun 17, 2026
NVD status
Modified

Related CVEs from 2016

CVE-2016-64406.5The Cisco Unified Communications Manager (CUCM) may be vulnerable to data that can be displayed inside an iframe within a web page, which inCVE-2016-64419.8A vulnerability in the Transaction Language 1 (TL1) code of Cisco ASR 900 Series routers could allow an unauthenticated, remote attacker to CVE-2016-64428.8A vulnerability in Cisco Finesse Agent and Supervisor Desktop Software could allow an unauthenticated, remote attacker to conduct a cross-siCVE-2016-64438.8A vulnerability in the Cisco Prime Infrastructure and Evolved Programmable Network Manager SQL database interface could allow an authenticatCVE-2016-64448.8A vulnerability in Cisco Meeting Server could allow an unauthenticated, remote attacker to conduct a cross-site request forgery (CSRF) attacCVE-2016-64459.1A vulnerability in the Extensible Messaging and Presence Protocol (XMPP) service of the Cisco Meeting Server (CMS) before 2.0.6 and Acano SeCVE-2016-64467.5A vulnerability in Web Bridge for Cisco Meeting Server could allow an unauthenticated, remote attacker to retrieve memory from a connected sCVE-2016-64479.8A vulnerability in Cisco Meeting Server and Meeting App could allow an unauthenticated, remote attacker to execute arbitrary code on an affeCVE-2016-64489.8A vulnerability in the Session Description Protocol (SDP) parser of Cisco Meeting Server could allow an unauthenticated, remote attacker to CVE-2016-64497.8A vulnerability in the system management of certain FireAMP system processes in Cisco FireAMP Connector Endpoint software could allow an autCVE-2016-64502.5A vulnerability in the package unbundle utility of Cisco IOS XE Software could allow an authenticated, local attacker to gain write access tCVE-2016-64516.1Multiple vulnerabilities in the web framework code of the Cisco Prime Collaboration Provisioning could allow an unauthenticated, remote atta
CVE-2016-6439: High severity, CVSS 7.5 | Vulnix