UpHeron
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Servers and applications

CVE-2021-42755

An integer overflow / wraparound vulnerability [CWE-190] in FortiSwitch 7.0.2 and below, 6.4.9 and below, 6.2.x, 6.0.x; FortiRecorder 6.4.2 and below, 6.0.10 and below; FortiOS 7.0.2 and below, 6.4.8 and below, 6.2.10 and below, 6.0.x; FortiProxy 7.0.0, 2.0.6 and below, 1.2.x, 1.1.x, 1.0.x; FortiVoiceEnterprise 6.4.3 and below, 6.0.10 and below dhcpd daemon may allow an unauthenticated and…

Severity
Medium 4.3
Published
18 Jul 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiProxyServers and applications · cpe:a:fortinet:fortiproxy
  • From 1.0.0 up to 1.0.7
  • From 1.1.0 up to 1.1.6
  • From 1.2.0 up to 1.2.13
  • From 2.0.0 up to 2.0.6
  • Version 7.0.0
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • Version 7.0.2
  • Version 7.0.1
  • Version 7.0.0
  • Version 6.4.7
All 66 release lines
  • Version 5.4.0
  • Version 5.4.1
  • Version 5.4.2
  • Version 5.4.3
  • Version 5.4.4
  • Version 5.4.5
  • Version 5.4.6
  • Version 5.4.7
  • Version 5.4.8
  • Version 5.4.9
  • Version 5.4.10
  • Version 5.4.11
  • Version 5.4.12
  • Version 5.4.13
  • Version 5.6.0
  • Version 5.6.1
  • Version 5.6.2
  • Version 5.6.3
  • Version 5.6.4
  • Version 5.6.5
  • Version 5.6.6
  • Version 5.6.7
  • Version 5.6.8
  • Version 5.6.9
  • Version 5.6.10
  • Version 5.6.11
  • Version 5.6.12
  • Version 5.6.13
  • Version 5.6.14
  • Version 6.0.0
  • Version 6.0.1
  • Version 6.0.2
  • Version 6.0.3
  • Version 6.0.4
  • Version 6.0.5
  • Version 6.0.6
  • Version 6.0.7
  • Version 6.0.8
  • Version 6.0.9
  • Version 6.0.10
  • Version 6.0.11
  • Version 6.0.12
  • Version 6.0.13
  • Version 6.0.14
  • Version 6.2.0
  • Version 6.2.1
  • Version 6.2.2
  • Version 6.2.3
  • Version 6.2.4
  • Version 6.2.5
  • Version 6.2.6
  • Version 6.2.7
  • Version 6.2.8
  • Version 6.2.9
  • Version 6.2.10
  • Version 6.4.0
  • Version 6.4.1
  • Version 6.4.2
  • Version 6.4.3
  • Version 6.4.4
  • Version 6.4.5
  • Version 6.4.6
  • Version 6.4.7
  • Version 7.0.0
  • Version 7.0.1
  • Version 7.0.2

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-42755
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-42755