CVE-2025-46776

Published Nov 18, 2025 CVSS 3.1 · 6.3 Medium EPSS < 1% KEV · Not listed

Description

A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.

Affected Products

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

FortiExtender

unaffected

Version	Status	Constraints
`7.6.0`	affected	≤ 7.6.1
`7.4.0`	affected	≤ 7.4.6
`7.2.0`	affected	≤ 7.2.5
`7.0.0`	affected	≤ 7.0.5

Configuration 1 [-]

AND

OR	cpe:2.3:o:fortinet:fortiextender_firmware::::::::
	cpe:2.3:o:fortinet:fortiextender_firmware::::::::

cpe:2.3:h:fortinet:fortiextender:-:*:*:*:*:*:*:*

No data.

No data available yet.

Remediation

Vendor Solution

Upgrade to FortiExtender version 7.6.3 or above Upgrade to FortiExtender version 7.4.8 or above

Tracking

Advisories

No advisories available

Metrics

No CVSS v4.0

Attack Vector Local

Attack Complexity High

Privileges Required High

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploit prediction score: < 1% (0.167% probability within 30 days)

Exploitation none

Automatable no

Technical Impact total

References

Link	Providers
https://fortiguard.fortinet.com/psirt/FG-IR-25-251

History

Jan 14, 2026 9:30 AM Description updated View changes

Type	Values Removed	Values Added
Description	A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.	A buffer copy without checking size of input ('classic buffer overflow') vulnerability in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.

Nov 20, 2025 2:45 PM First appearance in the feed. Affected versions updated. Affected vendors updated View changes

Type	Values Removed	Values Added
First Time appeared		Fortinet fortiextender Firmware
CPEs		cpe:2.3:h:fortinet:fortiextender:-:::::::* cpe:2.3:o:fortinet:fortiextender_firmware::::::::
Vendors & Products		Fortinet fortiextender Firmware

Nov 18, 2025 7:15 PM Scoring metrics updated View changes

Type	Values Removed	Values Added
Metrics		ssvc `{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Nov 18, 2025 5:15 PM Description updated. First appearance in the feed. Weaknesses updated. Affected versions updated. Affected vendors updated. Added references. Scoring metrics updated View changes

Type	Values Removed	Values Added
Description		A buffer copy without checking size of input ('classic buffer overflow') in Fortinet FortiExtender 7.6.0 through 7.6.1, FortiExtender 7.4.0 through 7.4.6, FortiExtender 7.2 all versions, FortiExtender 7.0 all versions may allow an authenticated user to execute arbitrary code or commands via crafted CLI commands.
First Time appeared		Fortinet Fortinet fortiextender
Weaknesses		CWE-120
CPEs		cpe:2.3:a:fortinet:fortiextender:7.0.0:::::::* cpe:2.3:a:fortinet:fortiextender:7.0.1:::::::* cpe:2.3:a:fortinet:fortiextender:7.0.2:::::::* cpe:2.3:a:fortinet:fortiextender:7.0.3:::::::* cpe:2.3:a:fortinet:fortiextender:7.0.4:::::::* cpe:2.3:a:fortinet:fortiextender:7.0.5:::::::* cpe:2.3:a:fortinet:fortiextender:7.2.0:::::::* cpe:2.3:a:fortinet:fortiextender:7.2.1:::::::* cpe:2.3:a:fortinet:fortiextender:7.2.2:::::::* cpe:2.3:a:fortinet:fortiextender:7.2.3:::::::* cpe:2.3:a:fortinet:fortiextender:7.2.4:::::::* cpe:2.3:a:fortinet:fortiextender:7.2.5:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.0:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.1:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.2:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.3:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.4:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.5:::::::* cpe:2.3:a:fortinet:fortiextender:7.4.6:::::::* cpe:2.3:a:fortinet:fortiextender:7.6.0:::::::* cpe:2.3:a:fortinet:fortiextender:7.6.1:::::::*
Vendors & Products		Fortinet Fortinet fortiextender
References		https://fortiguard.fortinet.com/psirt/FG-IR-25-251
Metrics		cvssV3_1 `{'score': 6.3, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H/E:F/RL:U/RC:C'}`