UpHeron
All vulnerabilities

Servers and applications

CVE-2022-27491

A improper verification of source of a communication channel in Fortinet FortiOS with IPS engine version 7.201 through 7.214, 7.001 through 7.113, 6.001 through 6.121, 5.001 through 5.258 and before 4.086 allows a remote and unauthenticated attacker to trigger the sending of "blocked page" HTML data to an arbitrary victim via crafted TCP requests, potentially flooding the victim.

Severity
High 7.5
Published
6 Sept 2022
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.2.11, 6.4.9, 7.0.6
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • From 6.0.0 up to 6.0.14
  • From 6.2.0 before 6.2.11
  • From 6.4.0 before 6.4.9
  • From 7.0.0 before 7.0.6
  • Version 7.2.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2022-27491
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2022-27491