UpHeron
All vulnerabilities

Servers and applications

CVE-2021-36173

A heap-based buffer overflow in the firmware signature verification function of FortiOS versions 7.0.1, 7.0.0, 6.4.0 through 6.4.6, 6.2.0 through 6.2.9, and 6.0.0 through 6.0.13 may allow an attacker to execute arbitrary code via specially crafted installation images.

Severity
High 8.8
Published
8 Dec 2021
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 6.0.13
  • From 6.2.0 up to 6.2.9
  • From 6.4.0 up to 6.4.6
  • Version 7.0.0
  • Version 7.0.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-36173
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-36173