7.5

CVE-2022-20746

Cisco Firepower Threat Defense Software TCP Proxy Denial of Service Vulnerability

A vulnerability in the TCP proxy functionality of Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to trigger a denial of service (DoS) condition. This vulnerability is due to improper handling of TCP flows. An attacker could exploit this vulnerability by sending a crafted stream of TCP traffic through an affected device. A successful exploit could allow the attacker to cause the device to reload, resulting in a DoS condition.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Cisco ≫ Secure Firewall Threat Defense Version < 6.4.0.15
Cisco ≫ Secure Firewall Threat Defense Version >= 6.5.0 < 6.6.5.2
Cisco ≫ Secure Firewall Threat Defense Version >= 7.0.0 < 7.0.2
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 1.29% 0.671
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
NIST 7.1 8.6 6.9
AV:N/AC:M/Au:N/C:N/I:N/A:C
Cisco PSIRT 8.6 3.9 4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
CWE-476 NULL Pointer Dereference

The product dereferences a pointer that it expects to be valid but is NULL.

https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-ftd-tcp-dos-kM9SHhOu
Vendor Advisory