UpHeron
All vulnerabilities

Servers and applications

CVE-2026-126259

A missing authentication for critical function vulnerability in Fortinet FortiOS 8.0.0, FortiOS 7.6.0 through 7.6.7, FortiOS 7.4.0 through 7.4.12, FortiOS 7.2.0 through 7.2.13 may allow an unauthenticated attacker with HA FGSP + standalone-config-sync, or autoscale to execute command as super admin via crafted HA packets.

Severity
Critical 9.0
Published
11 Nov 2026
Last changed
11 Nov 2026
Added to UpHeron
11 Nov 2026
Weakness
Missing authentication (CWE-306)
Attack
Over the network · No login needed · No user action needed
Attacker can
Read data · Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/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 7.2.13
  • From 7.4.0 up to 7.4.12
  • From 7.6.0 up to 7.6.7
  • Version 8.0.0
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • From 7.0.0 up to 7.0.19
  • From 7.2.0 up to 7.2.13
  • From 7.4.0 up to 7.4.12
  • From 7.6.0 up to 7.6.7
  • Version 8.0.0

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-126259