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Servers and applications

CVE-2022-26122

An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.

Severity
High 8.6
Published
2 Nov 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • From 6.0.0 up to 6.0.15
  • From 6.2.0 up to 6.2.11
  • From 6.4.0 up to 6.4.10
  • From 7.0.0 up to 7.0.6
  • Version 7.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-26122
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-26122