CVE-2023-20095

HIGH

Cisco Adaptive Security Appliance Software - Unauthenticated Denial of Service via HTTPS Request Handling

Title source: llm
STIX 2.1

Description

A vulnerability in the remote access VPN feature of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. This vulnerability is due to improper handling of HTTPS requests. An attacker could exploit this vulnerability by sending crafted HTTPS requests to an affected system. A successful exploit could allow the attacker to cause resource exhaustion, resulting in a DoS condition.

Scores

CVSS v3 8.6
EPSS 0.0064
EPSS Percentile 45.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

Details

CWE
CWE-772
Status published
Products (50)
cisco/adaptive_security_appliance_software 9.8.1
cisco/adaptive_security_appliance_software 9.8.1.5
cisco/adaptive_security_appliance_software 9.8.1.7
cisco/adaptive_security_appliance_software 9.8.2
cisco/adaptive_security_appliance_software 9.8.2.8
cisco/adaptive_security_appliance_software 9.8.2.14
cisco/adaptive_security_appliance_software 9.8.2.15
cisco/adaptive_security_appliance_software 9.8.2.17
cisco/adaptive_security_appliance_software 9.8.2.20
cisco/adaptive_security_appliance_software 9.8.2.24
... and 40 more
Published Nov 01, 2023
Tracked Since Feb 18, 2026