CVE-2018-0370 Denial of service in Cisco Firepower unknown
Unauthenticated remote attackers can cause memory exhaustion in the Snort detection engine, leading to performance degradation and process restarts.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2018-0370?
CVE-2018-0370 is a high-severity denial of service vulnerability in Cisco Secure Firewall Management Center, published on 16 Jul 2018. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability in the detection engine of Cisco Firepower System Software could allow an unauthenticated, remote attacker to cause one of the detection engine processes to run out of memory and thus slow down traffic processing. The vulnerability is due to improper handling of traffic when the Secure Sockets Layer (SSL) inspection policy is enabled. An attacker could exploit this vulnerability by sending malicious traffic through an affected device. An exploit could allow the attacker to increase the resource consumption of a single instance of the Snort detection engine on an affected device. This will lead to performance degradation and eventually the restart of the affected Snort process. Cisco Bug IDs: CSCvi09219, CSCvi29845.
Weakness: CWE-399
Which versions are affected by CVE-2018-0370?
It affects 1 product.
Products include Cisco Secure Firewall Management Center.
How do I fix CVE-2018-0370?
No fix has been published for CVE-2018-0370 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2018-0370 being exploited?
There is no known exploitation of CVE-2018-0370 in the wild and no public exploit code.
Other vulnerabilities in Cisco Secure Firewall Management Center
- CVE-2026-20079 Cisco Firewall Management Center Authentication Bypass Using an Alternate Path or Channel
- CVE-2026-20131 Cisco Secure Firewall Management Center (FMC) Software and Cisco Security Cloud Control (SCC) Firewall Management Deserialization of Untrusted Data
- CVE-2026-20316 Cisco Secure Firewall Management Center Use of Hard-coded Password
- CVE-2025-20265 Cisco Secure Firewall Management Center Software Radius Remote Code Execution Vulnerability
- CVE-2024-20424 Command injection in Cisco Firepower Management Center
Sources
Also known as GHSA-j95f-5r5g-7mrr.