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Servers and applications

CVE-2024-20481

A vulnerability in the Remote Access VPN (RAVPN) service 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) of the RAVPN service. This vulnerability is due to resource exhaustion. An attacker could exploit this vulnerability by sending a large number of VPN…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 24 Oct 2024.

Severity
Medium 5.8
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 199 release lines
  • Version 9.8.1
  • Version 9.8.1.5
  • Version 9.8.1.7
  • Version 9.8.2
  • Version 9.8.2.8
  • Version 9.8.2.14
  • Version 9.8.2.15
  • Version 9.8.2.17
  • Version 9.8.2.20
  • Version 9.8.2.24
  • Version 9.8.2.26
  • Version 9.8.2.28
  • Version 9.8.2.33
  • Version 9.8.2.35
  • Version 9.8.2.38
  • Version 9.8.2.45
  • Version 9.8.3
  • Version 9.8.3.8
  • Version 9.8.3.11
  • Version 9.8.3.14
  • Version 9.8.3.16
  • Version 9.8.3.18
  • Version 9.8.3.21
  • Version 9.8.3.26
  • Version 9.8.3.29
  • Version 9.8.4
  • Version 9.8.4.3
  • Version 9.8.4.7
  • Version 9.8.4.8
  • Version 9.8.4.10
  • Version 9.8.4.12
  • Version 9.8.4.15
  • Version 9.8.4.17
  • Version 9.8.4.20
  • Version 9.8.4.22
  • Version 9.8.4.25
  • Version 9.8.4.26
  • Version 9.8.4.29
  • Version 9.8.4.32
  • Version 9.8.4.33
  • Version 9.8.4.34
  • Version 9.8.4.35
  • Version 9.8.4.39
  • Version 9.8.4.40
  • Version 9.8.4.41
  • Version 9.8.4.43
  • Version 9.8.4.44
  • Version 9.8.4.45
  • Version 9.8.4.46
  • Version 9.8.4.48
  • Version 9.12.1
  • Version 9.12.1.2
  • Version 9.12.1.3
  • Version 9.12.2
  • Version 9.12.2.1
  • Version 9.12.2.4
  • Version 9.12.2.5
  • Version 9.12.2.9
  • Version 9.12.3
  • Version 9.12.3.2
  • Version 9.12.3.7
  • Version 9.12.3.9
  • Version 9.12.3.12
  • Version 9.12.4
  • Version 9.12.4.2
  • Version 9.12.4.4
  • Version 9.12.4.7
  • Version 9.12.4.8
  • Version 9.12.4.10
  • Version 9.12.4.13
  • Version 9.12.4.18
  • Version 9.12.4.24
  • Version 9.12.4.26
  • Version 9.12.4.29
  • Version 9.12.4.30
  • Version 9.12.4.35
  • Version 9.12.4.37
  • Version 9.12.4.38
  • Version 9.12.4.39
  • Version 9.12.4.40
  • Version 9.12.4.41
  • Version 9.12.4.47
  • Version 9.12.4.48
  • Version 9.12.4.50
  • Version 9.12.4.52
  • Version 9.12.4.54
  • Version 9.12.4.55
  • Version 9.12.4.56
  • Version 9.12.4.58
  • Version 9.12.4.62
  • Version 9.12.4.65
  • Version 9.12.4.67
  • Version 9.14.1
  • Version 9.14.1.6
  • Version 9.14.1.10
  • Version 9.14.1.15
  • Version 9.14.1.19
  • Version 9.14.1.30
  • Version 9.14.2
  • Version 9.14.2.4
  • Version 9.14.2.8
  • Version 9.14.2.13
  • Version 9.14.2.15
  • Version 9.14.3
  • Version 9.14.3.1
  • Version 9.14.3.9
  • Version 9.14.3.11
  • Version 9.14.3.13
  • Version 9.14.3.15
  • Version 9.14.3.18
  • Version 9.14.4
  • Version 9.14.4.6
  • Version 9.14.4.7
  • Version 9.14.4.12
  • Version 9.14.4.13
  • Version 9.14.4.14
  • Version 9.14.4.15
  • Version 9.14.4.17
  • Version 9.14.4.22
  • Version 9.14.4.23
  • Version 9.14.4.24
  • Version 9.15.1
  • Version 9.15.1.1
  • Version 9.15.1.7
  • Version 9.15.1.10
  • Version 9.15.1.15
  • Version 9.15.1.16
  • Version 9.15.1.17
  • Version 9.15.1.21
  • Version 9.16.1
  • Version 9.16.1.28
  • Version 9.16.2
  • Version 9.16.2.3
  • Version 9.16.2.7
  • Version 9.16.2.11
  • Version 9.16.2.13
  • Version 9.16.2.14
  • Version 9.16.3
  • Version 9.16.3.3
  • Version 9.16.3.14
  • Version 9.16.3.15
  • Version 9.16.3.19
  • Version 9.16.3.23
  • Version 9.16.4
  • Version 9.16.4.9
  • Version 9.16.4.14
  • Version 9.16.4.18
  • Version 9.16.4.19
  • Version 9.16.4.27
  • Version 9.16.4.38
  • Version 9.16.4.39
  • Version 9.16.4.42
  • Version 9.16.4.48
  • Version 9.16.4.55
  • Version 9.16.4.57
  • Version 9.16.4.61
  • Version 9.17.1
  • Version 9.17.1.7
  • Version 9.17.1.9
  • Version 9.17.1.10
  • Version 9.17.1.11
  • Version 9.17.1.13
  • Version 9.17.1.15
  • Version 9.17.1.20
  • Version 9.17.1.30
  • Version 9.17.1.33
  • Version 9.17.1.39
  • 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 9.19.1
  • 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

Known exploited

CISA name
Cisco ASA and FTD Denial-of-Service Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
14 Nov 2024
Used in ransomware
Not known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-20481
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-20481