UpHeron
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Servers and applications

CVE-2017-3793

A vulnerability in the TCP normalizer of Cisco Adaptive Security Appliance (ASA) Software (8.0 through 8.7 and 9.0 through 9.6) and Cisco Firepower Threat Defense (FTD) Software could allow an unauthenticated, remote attacker to cause Cisco ASA and FTD to drop any further incoming traffic on all interfaces, resulting in a denial of service (DoS) condition. The vulnerability is due to improper…

Severity
Medium 4.0
Published
20 Apr 2017
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
1.7% in the next 30 daysHigher than 77% of CVEs. EPSS by FIRST, 11 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Cisco ASA and Firepower Threat DefenseServers and applications · cpe:o:cisco:adaptive_security_appliance_software
  • Version 9.6.2.3
  • Version 9.6.2.2
  • Version 9.6.2.1
  • Version 9.6.2
All 253 release lines
  • Version 8.0.1.2
  • Version 8.0.2
  • Version 8.0.2.11
  • Version 8.0.2.15
  • Version 8.0.3
  • Version 8.0.3.6
  • Version 8.0.3.12
  • Version 8.0.3.19
  • Version 8.0.4
  • Version 8.0.4.3
  • Version 8.0.4.9
  • Version 8.0.4.16
  • Version 8.0.4.23
  • Version 8.0.4.25
  • Version 8.0.4.28
  • Version 8.0.4.31
  • Version 8.0.4.32
  • Version 8.0.4.33
  • Version 8.0.5
  • Version 8.0.5.20
  • Version 8.0.5.23
  • Version 8.0.5.25
  • Version 8.0.5.27
  • Version 8.0.5.28
  • Version 8.0.5.31
  • Version 8.1.0.104
  • Version 8.1.1
  • Version 8.1.1.6
  • Version 8.1.2
  • Version 8.1.2.13
  • Version 8.1.2.15
  • Version 8.1.2.16
  • Version 8.1.2.19
  • Version 8.1.2.23
  • Version 8.1.2.24
  • Version 8.1.2.49
  • Version 8.1.2.50
  • Version 8.1.2.55
  • Version 8.1.2.56
  • Version 8.2.0.45
  • Version 8.2.1
  • Version 8.2.1.11
  • Version 8.2.2
  • Version 8.2.2.9
  • Version 8.2.2.10
  • Version 8.2.2.12
  • Version 8.2.2.16
  • Version 8.2.2.17
  • Version 8.2.3
  • Version 8.2.4
  • Version 8.2.4.1
  • Version 8.2.4.4
  • Version 8.2.5
  • Version 8.2.5.13
  • Version 8.2.5.22
  • Version 8.2.5.26
  • Version 8.2.5.33
  • Version 8.2.5.40
  • Version 8.2.5.41
  • Version 8.2.5.46
  • Version 8.2.5.48
  • Version 8.2.5.50
  • Version 8.2.5.52
  • Version 8.2.5.55
  • Version 8.2.5.57
  • Version 8.2.5.59
  • Version 8.3.1
  • Version 8.3.1.1
  • Version 8.3.1.4
  • Version 8.3.1.6
  • Version 8.3.2
  • Version 8.3.2.4
  • Version 8.3.2.13
  • Version 8.3.2.23
  • Version 8.3.2.25
  • Version 8.3.2.31
  • Version 8.3.2.33
  • Version 8.3.2.34
  • Version 8.3.2.37
  • Version 8.3.2.39
  • Version 8.3.2.40
  • Version 8.3.2.41
  • Version 8.3.2.44
  • Version 8.4.0
  • Version 8.4.1
  • Version 8.4.1.3
  • Version 8.4.1.11
  • Version 8.4.2
  • Version 8.4.2.1
  • Version 8.4.2.8
  • Version 8.4.3
  • Version 8.4.3.8
  • Version 8.4.3.9
  • Version 8.4.4
  • Version 8.4.4.1
  • Version 8.4.4.3
  • Version 8.4.4.5
  • Version 8.4.4.9
  • Version 8.4.5
  • Version 8.4.5.6
  • Version 8.4.6
  • Version 8.4.7
  • Version 8.4.7.3
  • Version 8.4.7.15
  • Version 8.4.7.22
  • Version 8.4.7.23
  • Version 8.4.7.26
  • Version 8.4.7.28
  • Version 8.4.7.29
  • Version 8.5.1
  • Version 8.5.1.1
  • Version 8.5.1.6
  • Version 8.5.1.7
  • Version 8.5.1.14
  • Version 8.5.1.17
  • Version 8.5.1.18
  • Version 8.5.1.19
  • Version 8.5.1.21
  • Version 8.5.1.24
  • Version 8.6.1
  • Version 8.6.1.1
  • Version 8.6.1.2
  • Version 8.6.1.5
  • Version 8.6.1.10
  • Version 8.6.1.12
  • Version 8.6.1.13
  • Version 8.6.1.14
  • Version 8.6.1.17
  • Version 8.7.1
  • Version 8.7.1.1
  • Version 8.7.1.3
  • Version 8.7.1.4
  • Version 8.7.1.7
  • Version 8.7.1.8
  • Version 8.7.1.11
  • Version 8.7.1.13
  • Version 8.7.1.16
  • Version 8.7.1.17
  • Version 9.0.1
  • Version 9.0.2
  • Version 9.0.2.10
  • Version 9.0.3
  • Version 9.0.3.6
  • Version 9.0.3.8
  • Version 9.0.4
  • Version 9.0.4.1
  • Version 9.0.4.5
  • Version 9.0.4.7
  • Version 9.0.4.17
  • Version 9.0.4.20
  • Version 9.0.4.24
  • Version 9.0.4.26
  • Version 9.0.4.29
  • Version 9.0.4.33
  • Version 9.0.4.35
  • Version 9.0.4.37
  • Version 9.0.4.40
  • Version 9.0.4.42
  • Version 9.1(7)4
  • Version 9.1(7)6
  • Version 9.1(7)7
  • Version 9.1(7)9
  • Version 9.1(7)11
  • Version 9.1(7)12
  • Version 9.1.1
  • Version 9.1.1.4
  • Version 9.1.2
  • Version 9.1.2.8
  • Version 9.1.3
  • Version 9.1.3.2
  • Version 9.1.4
  • Version 9.1.4.5
  • Version 9.1.5
  • Version 9.1.5.10
  • Version 9.1.5.12
  • Version 9.1.5.15
  • Version 9.1.5.21
  • Version 9.1.6
  • Version 9.1.6.1
  • Version 9.1.6.4
  • Version 9.1.6.6
  • Version 9.1.6.8
  • Version 9.1.6.10
  • Version 9.2(0.0)
  • Version 9.2(0.104)
  • Version 9.2(3.1)
  • Version 9.2.1
  • Version 9.2.2
  • Version 9.2.2.4
  • Version 9.2.2.7
  • Version 9.2.2.8
  • Version 9.2.3
  • Version 9.2.3.3
  • Version 9.2.3.4
  • Version 9.2.4
  • Version 9.2.4.2
  • Version 9.2.4.4
  • Version 9.2.4.8
  • Version 9.2.4.10
  • Version 9.2.4.13
  • Version 9.2.4.14
  • Version 9.2.4.16
  • Version 9.2.4.17
  • Version 9.3(1.50)
  • Version 9.3(1.105)
  • Version 9.3(2.100)
  • Version 9.3(2.243)
  • Version 9.3.1
  • Version 9.3.1.1
  • Version 9.3.2
  • Version 9.3.2.2
  • Version 9.3.3
  • Version 9.3.3.1
  • Version 9.3.3.2
  • Version 9.3.3.5
  • Version 9.3.3.6
  • Version 9.3.3.9
  • Version 9.3.3.10
  • Version 9.3.3.11
  • Version 9.3.5
  • Version 9.4.0.115
  • Version 9.4.1
  • Version 9.4.1.1
  • Version 9.4.1.2
  • Version 9.4.1.3
  • Version 9.4.1.5
  • Version 9.4.2
  • Version 9.4.2.3
  • Version 9.4.3
  • Version 9.4.3.3
  • Version 9.4.3.4
  • Version 9.4.3.6
  • Version 9.4.3.8
  • Version 9.4.3.11
  • Version 9.4.3.12
  • Version 9.4.4
  • Version 9.5.1
  • Version 9.5.2
  • Version 9.5.2.6
  • Version 9.5.2.10
  • Version 9.5.2.14
  • Version 9.5.3
  • Version 9.5.3.2
  • Version 9.5.3.3
  • Version 9.6.0
  • Version 9.6.1
  • Version 9.6.1.3
  • Version 9.6.1.5
  • Version 9.6.1.10
  • Version 9.6.2
  • Version 9.6.2.1
  • Version 9.6.2.2
  • Version 9.6.2.3

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2017-3793
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2017-3793