UpHeron
All vulnerabilities

Servers and applications

CVE-2026-126256

A out-of-bounds read vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4 all versions, FortiOS 7.2 all versions, FortiOS 7.0 all versions may allow a remote privileged attacker to execute arbitrary code or command via crafted paquets.

Severity
High 7.4
Published
11 Nov 2026
Last changed
11 Nov 2026
Added to UpHeron
11 Nov 2026
Weakness
Out-of-bounds read (CWE-125)
Attack
Over the network · Only under certain conditions · No login needed · No user action needed
Attacker can
Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H/E:P/RL:O/RC:C
Sources
CVE Program

Affected software

SoftwareAffected versions
Fortinet FortiOSServers and applications · cna:fortinet|fortios
  • From 7.0.0 up to 7.0.19
  • From 7.2.0 up to 7.2.14
  • From 7.4.0 up to 7.4.13
  • From 7.6.0 up to 7.6.7
  • From 8.0.0 up to 8.0.1
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • From 7.0.0 up to 7.0.19
  • From 7.2.0 up to 7.2.14
  • From 7.4.0 up to 7.4.13
  • From 7.6.0 up to 7.6.7
  • From 8.0.0 up to 8.0.1

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-126256