UpHeron
All vulnerabilities

Servers and applications

CVE-2024-21762

A out-of-bounds write vulnerability in Fortinet FortiOS 7.4.0 through 7.4.2, FortiOS 7.2.0 through 7.2.6, FortiOS 7.0.0 through 7.0.13, FortiOS 6.4.0 through 6.4.14, FortiOS 6.2.0 through 6.2.15, FortiOS 6.0 all versions, FortiProxy 7.4.0 through 7.4.2, FortiProxy 7.2.0 through 7.2.8, FortiProxy 7.0.0 through 7.0.14, FortiProxy 2.0.0 through 2.0.13, FortiProxy 01.02 all versions, FortiProxy 1.2…

Actively exploited: CISA added it to its Known Exploited Vulnerabilities catalog on 9 Feb 2024.

Severity
Critical 9.8
Published
9 Feb 2024
Last changed
22 Oct 2026
Added to UpHeron
1 Nov 2026
Fixed in
6.4.15, 7.0.14, 7.0.15, 7.2.7, 7.2.9, 7.4.3
Sources
NVD

Affected software

SoftwareAffected versions
Fortinet FortiProxyServers and applications · cpe:a:fortinet:fortiproxy
  • From 1.0.0 before 2.0.14
  • From 7.0.0 before 7.0.15
  • From 7.2.0 before 7.2.9
  • From 7.4.0 before 7.4.3
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • From 6.0.0 before 6.0.18
  • From 6.2.0 before 6.2.16
  • From 6.4.0 before 6.4.15
  • From 7.0.0 before 7.0.14
  • From 7.2.0 before 7.2.7
  • From 7.4.0 before 7.4.3

Known exploited

CISA name
Fortinet FortiOS Out-of-Bound Write Vulnerability
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Due for US agencies
16 Feb 2024
Used in ransomware
Yes, known

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2024-21762
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2024-21762