CVE-2025-53847 PUBLISHED

Assigner: fortinet
Reserved: 10.07.2025 Published: 14.04.2026 Updated: 14.04.2026

A missing authentication for critical function vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiOS 6.2.9 through 6.2.17 allows attacker to execute unauthorized code or commands via specially crafted packets.

Metrics

CVSS 3.1

CVSS Vector: CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N/E:F/RL:O/RC:C
CVSS Score: 6.2

Attack Vector	Adjacent Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	High
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Fortinet
Product	FortiOS
Versions	Default: unaffected affected from 7.6.0 to 7.6.3 (incl.) affected from 7.4.0 to 7.4.8 (incl.) affected from 7.2.0 to 7.2.11 (incl.) affected from 7.0.0 to 7.0.17 (incl.) affected from 6.4.0 to 6.4.16 (incl.) affected from 6.2.9 to 6.2.17 (incl.)

Solutions

Upgrade to FortiOS version 7.6.4 or above Upgrade to FortiOS version 7.4.9 or above Upgrade to FortiOS version 7.2.12 or above Upgrade to FortiOS version 7.0.18 or above

References

https://fortiguard.fortinet.com/psirt/FG-IR-26-125

Problem Types

Execute unauthorized code or commands CWE