CVE-2024-20351

Cisco Firepower Threat Defense Software Snort Firewall Denial of Service Vulnerability

Description

A vulnerability in the TCP/IP traffic handling function of the Snort Detection Engine of Cisco Firepower Threat Defense (FTD) Software and Cisco FirePOWER Services could allow an unauthenticated, remote attacker to cause legitimate network traffic to be dropped, resulting in a denial of service (DoS) condition. This vulnerability is due to the improper handling of TCP/IP network traffic. An attacker could exploit this vulnerability by sending a large amount of TCP/IP network traffic through the affected device. A successful exploit could allow the attacker to cause the Cisco FTD device to drop network traffic, resulting in a DoS condition. The affected device must be rebooted to resolve the DoS condition.

Category

8.6
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.38%
Vendor Advisory cisco.com Vendor Advisory cisco.com
Affected: Cisco Cisco Firepower Threat Defense Software
Published at:
Updated at:

References

Link Tags
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-sa-ftd-snort-fw-BCJTZPMu vendor advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-fmc-xss-M446vbEO broken link
https://sec.cloudapps.cisco.com/security/center/viewErp.x?alertId=ERP-75300 vendor advisory
https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-asa-xss-yjj7ZjVq broken link

Frequently Asked Questions

What is the severity of CVE-2024-20351?
CVE-2024-20351 has been scored as a high severity vulnerability.
How to fix CVE-2024-20351?
To fix CVE-2024-20351, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-20351 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-20351 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-20351?
CVE-2024-20351 affects Cisco Cisco Firepower Threat Defense Software.
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