Numeric Truncation Error in Fortinet FortiOS

Publication date: 2026-11-11

Last updated on: 2026-11-11

Assigner: Fortinet, Inc.

Description

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

CVSS Scores

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Meta Information

Published

2026-11-11

Last Modified

2026-11-11

Generated

2026-11-12

EPSS Evaluated

N/A

NVD

CVE-2026-126254

EUVD

EUVD-2026-123901

Affected Vendors & Products

Vendor	Product	Version / Range
Fortinet	FortiOS	From 8.0.0 (inc) to 8.0.1 (inc)
Fortinet	FortiOS	From 7.6.0 (inc) to 7.6.7 (inc)
Fortinet	FortiOS	From 7.4.0 (inc) to 7.4.12 (inc)
Fortinet	FortiOS	From 7.2.0 (inc) to 7.2.13 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-197	Truncation errors occur when a primitive is cast to a primitive of a smaller size and data is lost in the conversion.

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