Vulnerability in Cisco Adaptive Security Appliance Software

CVE-2020-27124

A vulnerability in the SSL/TLS handler of Cisco Adaptive Security Appliance (ASA) Software could allow an unauthenticated, remote attacker to cause the affected device to reload unexpectedly, leading to a denial of service (DoS) condition. The vulnerability is due to improper error handling on established SSL/TLS connections. An attacker could exploit this vulnerability by establishing an SSL/TLS connection with the affected device and then sending a malicious SSL/TLS message within that connection. A successful exploit could allow the attacker to cause the device to reload.Cisco has released software updates that address this vulnerability. There are no workarounds that address this vulnerability.

EPSS: 0.009 (57.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2020-27124?
CVE-2020-27124 is a high-severity vulnerability in Cisco Adaptive Security Appliance Software, classified under CWE-457. CVSS score: 8.6/10. Published 2024-11-18.
How severe is CVE-2020-27124?
High severity. CVSS v3 base score is 8.6 out of 10.