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Fortinet Fortigate Heap buffer overflow in websocket (FG-IR-24-546)
medium Nessus Plugin ID 270357
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Synopsis
Fortinet Firewall is affected by a privilege escalation.Description
The version of Fortigate installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the FG-IR-24-546 advisory.- A heap-based buffer overflow in Fortinet FortiSRA 1.5.0, 1.4.0 through 1.4.2, FortiPAM 1.5.0, 1.4.0 through 1.4.2, 1.3.0 through 1.3.1, 1.2.0, 1.1.0 through 1.1.2, 1.0.0 through 1.0.3, FortiProxy 7.6.0 through 7.6.1, 7.4.0 through 7.4.7, FortiOS 7.6.0 through 7.6.2, 7.4.0 through 7.4.6, 7.2.0 through 7.2.10, 7.0.2 through 7.0.16, FortiSwitchManager 7.2.1 through 7.2.5 allows attackers to escalate their privilege via specially crafted http requests. (CVE-2025-22258)
Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.
Solution
For 7.0.x, upgrade to Fortigate version 7.0.17 or later. For 7.2.x, upgrade to Fortigate version 7.2.11 or later. For 7.4.x, upgrade to Fortigate version 7.4.7 or later. For 7.6.x, upgrade to Fortigate version 7.6.3 or later.See Also
Plugin Details
Severity: Medium
ID: 270357
File Name: fortigate_FG-IR-24-546.nasl
Version: 1.1
Type: local
Family: Firewalls
Published: 10/14/2025
Updated: 10/14/2025
Supported Sensors: Nessus
Risk Information
VPR
Risk Factor: High
Score: 7.4
CVSS v2
Risk Factor: High
Base Score: 7.7
Temporal Score: 5.7
Vector: CVSS2#AV:N/AC:L/Au:M/C:N/I:C/A:C
CVSS Score Source: CVE-2025-22258
CVSS v3
Risk Factor: Medium
Base Score: 6.5
Temporal Score: 5.7
Vector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H
Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C
Vulnerability Information
CPE: cpe:/o:fortinet:fortios
Required KB Items: Host/Fortigate/model, Host/Fortigate/version
Exploit Ease: No known exploits are available
Patch Publication Date: 10/14/2025
Vulnerability Publication Date: 10/14/2025
Reference Information
CVE: CVE-2025-22258