Vulnerability in Cisco Adaptive Security Appliance

CVE-2020-3564

A vulnerability in the FTP inspection engine of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to bypass FTP inspection. The vulnerability is due to ineffective flow tracking of FTP traffic. An attacker could exploit this vulnerability by sending crafted FTP traffic through an affected device. A successful exploit could allow the attacker to bypass FTP inspection and successfully complete FTP connections.

EPSS: 0.013 (68.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-3564?
CVE-2020-3564 is a medium-severity vulnerability in Cisco Adaptive Security Appliance, classified under Improper Access Control. CVSS score: 5.3/10. Published 2020-10-21.
How severe is CVE-2020-3564?
Medium severity. CVSS v3 base score is 5.3 out of 10.