CVE-2024-20339
high-risk
Published 2024-10-23
A vulnerability in the TLS processing feature of Cisco Firepower Threat Defense (FTD) Software for Cisco Firepower 2100 Series could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to an issue that occurs when TLS traffic is processed. An attacker could exploit this vulnerability by sending certain TLS traffic over IPv4 through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition and impacting traffic to and through the affected device.
Do I need to act?
~
2.1% chance of exploitation in next 30 days
EPSS score — moderate exploit probability
-
Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
8
CVSS 8.6/10
High
NETWORK
/ LOW complexity
Affected Products (20)
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Firepower Threat Defense Software
Affected Vendors
References (3)
63
/ 100
high-risk
Severity
29/34 · Critical
Exploitability
5/34 · Minimal
Exposure
29/34 · Critical