CVE-2022-20927

HIGH

Cisco Firepower Threat Defense < 6.5.0.5 - Buffer Overflow

Title source: rule
STIX 2.1

Description

A vulnerability in the SSL/TLS client of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper memory management when a device initiates SSL/TLS connections. An attacker could exploit this vulnerability by ensuring that the device will connect to an SSL/TLS server that is using specific encryption parameters. A successful exploit could allow the attacker to cause the affected device to unexpectedly reload, resulting in a DoS condition.

Scores

CVSS v3 7.7
EPSS 0.0019
EPSS Percentile 40.9%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H

Details

CWE
CWE-120
Status published
Products (43)
cisco/adaptive_security_appliance_software 9.13.1
cisco/adaptive_security_appliance_software 9.13.1.2
cisco/adaptive_security_appliance_software 9.13.1.7
cisco/adaptive_security_appliance_software 9.13.1.10
cisco/adaptive_security_appliance_software 9.13.1.12
cisco/adaptive_security_appliance_software 9.13.1.13
cisco/adaptive_security_appliance_software 9.13.1.16
cisco/adaptive_security_appliance_software 9.13.1.19
cisco/adaptive_security_appliance_software 9.13.1.21
cisco/adaptive_security_appliance_software 9.14.1
... and 33 more
Published Nov 15, 2022
Tracked Since Feb 18, 2026