UpHeron
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Servers and applications

CVE-2021-40125

A vulnerability in the Internet Key Exchange Version 2 (IKEv2) implementation of Cisco Adaptive Security Appliance (ASA) Software and Cisco Firepower Threat Defense (FTD) Software could allow an authenticated, remote attacker to trigger a denial of service (DoS) condition on an affected device. This vulnerability is due to improper control of a resource. An attacker with the ability to spoof a…

Severity
Medium 6.5
Published
27 Oct 2021
Last changed
11 Aug 2026
Added to UpHeron
1 Nov 2026
Fixed in
9.8.4.40, 9.12.4.30, 9.14.3.9, 9.15.1.17, 9.16.2
Sources
NVD

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • From 9.8.0 before 9.8.4.40
  • From 9.9.0 before 9.12.4.30
  • From 9.14.0 before 9.14.3.9
  • From 9.15.0 before 9.15.1.17
  • From 9.16.0 before 9.16.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-40125
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-40125