Resource exhaustion in Cisco Adaptive Security Appliance
CVE-2020-3554
A vulnerability in the TCP packet processing 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. The vulnerability is due to a memory exhaustion condition. An attacker could exploit this vulnerability by sending a high rate of crafted TCP traffic through an affected device. A successful exploit could allow the attacker to exhaust device resources, resulting in a DoS condition for traffic transiting the affected device.
Vulnerability class: DoS (Denial of Service)
EPSS: 0.027 (84.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Cisco Adaptive_security_appliance
- Cisco Adaptive_security_appliance_software
- Cisco Adaptive Security Appliance (Asa) Software — versions n/a
- Cisco Firepower_threat_defense — versions 6.6.0
- Cisco Secure_firewall_threat_defense — versions 6.6.0
Weakness classification (CWE)
References
- psirt@cisco.com (x_refsource_CISCO, vendor-advisory, Vendor Advisory)
Frequently asked questions
- What is CVE-2020-3554?
- CVE-2020-3554 is a high-severity vulnerability in Cisco Adaptive Security Appliance, classified under Uncontrolled Resource Consumption. CVSS score: 7.5/10. Published 2020-10-21.
- How severe is CVE-2020-3554?
- High severity. CVSS v3 base score is 7.5 out of 10.