Paper/Archive/CVE-2026-126254

CVE-2026-126254

Fortinet FortiOS — 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.…

CVSS 9.6

critical.is priorityof 100

CVSS 9.6 (CNA)9.6 / 10 × 3028.8 Not in CISA KEV+300.0 No EPSS score.000 × 200.0 No public exploit+100.0 SSVC exploitation: unknown+100.0

Description · from the CVE record

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

Affected

ProductAffectedFixed inSource

FortiOS8.0.0 – 8.0.1–CNA

FortiOS7.6.0 – 7.6.7–CNA

FortiOS7.4.0 – 7.4.12–CNA

FortiOS7.2.0 – 7.2.13–CNA

Scores by source

fortinet (CNA)9.6CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H/E:F/RL:O/RC:C

References

reffortiguard.fortinet.com/psirt/FG-IR-26-268