UpHeron
All vulnerabilities

Servers and applications

CVE-2020-3303

A vulnerability in the Internet Key Exchange version 1 (IKEv1) 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. The vulnerability is due to improper management of system memory. An attacker could exploit this vulnerability by sending malicious…

Severity
High 7.5
Published
6 May 2020
Last changed
11 Aug 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.6.4.36, 9.8.4.10, 9.10.1.30, 9.12.2.9
Sources
NVD

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:a:cisco:adaptive_security_appliance
  • Every version before 9.6.4.36
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • From 9.7 before 9.8.4.10
  • From 9.9 before 9.10.1.30
  • From 9.12 before 9.12.2.9

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2020-3303
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2020-3303