Skip to content
fr Sign in
8.6 High

CVE-2020-27124 A vulnerability in the SSL/TLS handler of Cisco Adaptive Security Appliance (ASA) Software could allow an…

Description

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.

Affected products and versions

Product Affected versions Fixed in
Cisco Adaptive Security Appliance (ASA) Software Versions not published
adaptive_security_appliance 9.14 9.14.1.10 → < 9.14.1.15 9.14.1.15
adaptive_security_appliance 9.13 9.13.1.12 → < 9.13.1.16 9.13.1.16

References

Timeline

  1. Published
  2. Last modified

Other CVEs of Cisco Adaptive Security Appliance (ASA) Software

The 161 CVEs of Cisco Adaptive Security Appliance (ASA) Software →
CVE-2025-20363 A vulnerability in the web services of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software, Cisco Secure… 9.0 Critical CVE-2025-20254 A vulnerability in the Internet Key Exchange Version 2 (IKEv2) module of Cisco Secure Firewall Adaptive Security… 5.8 Medium CVE-2025-20263 A vulnerability in the web services interface of Cisco Secure Firewall Adaptive Security Appliance (ASA) Software and… 8.6 High CVE-2025-20253 A vulnerability in the IKEv2 feature of Cisco IOS Software, IOS XE Software, Secure Firewall ASA Software, and Secure… 8.6 High
Track this CVE