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

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Changed

Confidentiality Impact None

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Fortinet FortiOS unaffected
Version Status Constraints
8.0.0 affected ≤ 8.0.1
7.6.0 affected ≤ 7.6.7
7.4.0 affected ≤ 7.4.12
7.2.0 affected ≤ 7.2.13

No data.

No data.

No data.

Project Subscriptions

Vendors Products
Fortinet Subscribe
Fortios Subscribe
Advisories

No advisories yet.

Fixes

Solution

Upgrade to FortiOS version 8.0.2 or above Upgrade to FortiOS version 7.6.8 or above Upgrade to FortiOS version 7.4.13 or above Upgrade to FortiOS version 7.2.14 or above

Workaround

No workaround given by the vendor.

References
Link Providers
https://fortiguard.fortinet.com/psirt/FG-IR-26-268 cve-icon
History

Wed, 11 Nov 2026 21:45:00 +0000

Type Values Removed Values Added
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
First Time appeared Fortinet
Fortinet fortios
Weaknesses CWE-197
CPEs cpe:2.3:o:fortinet:fortios:7.2.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.10:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.11:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.12:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.13:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.2.9:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.10:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.11:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.12:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.8:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.4.9:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.1:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.2:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.3:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.4:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.5:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.6:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:7.6.7:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:8.0.0:*:*:*:*:*:*:*
cpe:2.3:o:fortinet:fortios:8.0.1:*:*:*:*:*:*:*
Vendors & Products Fortinet
Fortinet fortios
References
Metrics cvssV3_1

{'score': 9.6, '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'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: fortinet

Published:

Updated: 2026-11-11T21:31:50.608Z

Reserved: 2026-11-10T20:09:56.646Z

Link: CVE-2026-126254

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses