All vulnerabilities

Servers and applications

CVE-2024-20426

A vulnerability in the Internet Key Exchange version 2 (IKEv2) protocol for VPN termination 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. This vulnerability is due to insufficient input validation. An attacker could exploit…

Severity
High 8.6
Published
23 Oct 2024
Last changed
11 Aug 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • Version 9.20.2.21
  • Version 9.20.2.10
  • Version 9.20.2
  • Version 9.20.1.5
All 33 release lines
  • Version 9.18.1
  • Version 9.18.1.3
  • Version 9.18.2
  • Version 9.18.2.5
  • Version 9.18.2.7
  • Version 9.18.2.8
  • Version 9.18.3
  • Version 9.18.3.39
  • Version 9.18.3.46
  • Version 9.18.3.53
  • Version 9.18.3.55
  • Version 9.18.3.56
  • Version 9.18.4
  • Version 9.18.4.5
  • Version 9.18.4.8
  • Version 9.18.4.22
  • Version 9.18.4.24
  • Version 9.18.4.29
  • Version 9.19.1
  • Version 9.19.1.5
  • Version 9.19.1.9
  • Version 9.19.1.12
  • Version 9.19.1.18
  • Version 9.19.1.22
  • Version 9.19.1.24
  • Version 9.19.1.27
  • Version 9.19.1.28
  • Version 9.19.1.31
  • Version 9.20.1
  • Version 9.20.1.5
  • Version 9.20.2
  • Version 9.20.2.10
  • Version 9.20.2.21

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-20426
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-20426