CVE-2023-20042: medium-severity vulnerability in Cisco Adaptive Security Appliance (ASA) Software
Published · Updated
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13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.8epss 0.9%
A vulnerability in the AnyConnect SSL 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 an implementation error within the SSL/TLS session handling process that can prevent the release of a session handler under specific conditions. An attacker could exploit this vulnerability by sending crafted SSL/TLS traffic to an affected device, increasing the probability of session handler leaks. A successful exploit could allow the attacker to eventually deplete the available session handler pool, preventing new sessions from being established and causing a DoS condition.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:N/A:H
Affected products
Cisco · Cisco Adaptive Security Appliance (ASA) SoftwareCisco · Cisco Firepower Threat Defense SoftwareRelated CVEs — Cisco Adaptive Security Appliance (ASA) Software
In the same product, most dangerous first.
CVE-2020-3452HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Read-Only Path Traversal VulnerabilityEPSS 100.0%KEVCVE-2020-3580MEDIUMCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Interface Cross-Site Scripting VulnerabilitiesEPSS 85.6%KEVCVE-2020-3259HIGHCisco Adaptive Security Appliance Software and Firepower Threat Defense Software Web Services Information Disclosure VulnerabilityEPSS 71.5%KEVCVE-2024-20353HIGHCVE-2024-20353EPSS 69.8%KEVCVE-2023-20269MEDIUMCVE-2023-20269EPSS 26.6%KEVCVE-2024-20359MEDIUMCVE-2024-20359EPSS 18.8%KEV