UpHeron
All vulnerabilities

Servers and applications

CVE-2021-24018

A buffer underwrite vulnerability in the firmware verification routine of FortiOS before 7.0.1 may allow an attacker located in the adjacent network to potentially execute arbitrary code via a specifically crafted firmware image.

Severity
High 8.8
Published
4 Aug 2021
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.2.10, 6.4.7
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • Every version before 6.2.10
  • From 6.4.0 before 6.4.7
  • Version 7.0.0

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2021-24018
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2021-24018