UpHeron
All vulnerabilities

Servers and applications

CVE-2026-126254

A numeric truncation error vulnerability in Fortinet FortiOS 8.0.0 through 8.0.1, 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 a configured ibgp neighbor to send malicious/malformed attributes to all connected routers via a specially crafted request

Severity
Critical 9.6
Published
11 Nov 2026
Last changed
11 Nov 2026
Added to UpHeron
11 Nov 2026
Weakness
CWE-197
Attack
Over the network · Needs a user account · No user action needed
Attacker can
Change data · Take it down
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/E:F/RL:O/RC:C
Sources
CVE Program

Affected software

SoftwareAffected versions
Fortinet FortiOSServers and applications · cna:fortinet|fortios
  • 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
  • From 8.0.0 up to 8.0.1
Fortinet FortiOSServers and applications · cpe:o:fortinet:fortios
  • 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
  • From 8.0.0 up to 8.0.1

References

  • CVE.org https://www.cve.org/CVERecord?id=CVE-2026-126254