CVE-2025-46373

Description

A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections

Overview

State: PUBLISHED
Assigner (CNA): fortinet
CVSS severity: HIGH
CVSS score: 7.1 / 10
CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
Effective score: 7.1 / 10 HIGH source: CNA overview
CWE(s): CWE-122
Reserved: 2025-04-23
Published: 2025-11-18 18:01 UTC
Last updated: 2026-01-14 10:15 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2025/46xxx/CVE-2025-46373.json
Linked Threat: CVE-2025-46373 — CVE-2025-46373

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2025-11-18 17:16:01 UTC
NVD last modified: 2026-06-17 09:26:18 UTC
NVD CVSS v3.1: 7.8 / 10 HIGH source: psirt@fortinet.com
NVD CVSS vector: CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
Exploitability subscore: 1.1 / 10
Impact subscore: 6.0 / 10
EPSS score: 0.0015 (probability of exploitation in next 30 days)
EPSS percentile: 4.63% vs all CVEs — higher = more likely to be exploited, as of 2026-07-27

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2025-198018
Assigner: fortinet
Published: Nov 18, 2025, 5:01:15 PM
Updated: Jan 14, 2026, 9:15:00 AM
EUVD base score (CVSS 3.1): 7.1 / 10
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H/E:P/RL:X/RC:R
EUVD-reported EPSS: 0.0200
Vendors: Fortinet
Products: FortiClientWindows (7.2.0 ≤7.2.8)

FortiClientWindows (7.4.0 ≤7.4.3)
Aliases: GHSA-mjrx-5jw9-2x26

ENISA description: A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections

EUVD references (1)

https://fortiguard.fortinet.com/psirt/FG-IR-25-125

Affected products (1)

Vendor	Product	Versions	Platforms
Fortinet	FortiClientWindows	`7.4.0` (affected), `7.2.0` (affected)	—

Affected products — CPE 2.3 (1) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:fortinet:forticlient:*:*:*:*:*:windows:*:*

Vendor references (1)

References embedded in the original CVE record by the assigning CNA.

https://fortiguard.fortinet.com/psirt/FG-IR-25-125

MITRE references (1) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

https://fortiguard.fortinet.com/psirt/FG-IR-25-125

Web references (7)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://attackerkb.com/topics/CVE-2025-46373 rapid7:attackerkb.com
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2025-46373 rapid7:cve.mitre.org
https://euvd.enisa.europa.eu/vulnerability/EUVD-2025-198018 rapid7:euvd.enisa.europa.eu
https://services.nvd.nist.gov/rest/json/cves/2.0?cveId=CVE-2025-46373 rapid7:services.nvd.nist.gov
https://www.cve.org/CVERecord?id=CVE-2025-46373 rapid7:www.cve.org
http://cwe.mitre.org/data/definitions/122.html rapid7:cwe.mitre.org
https://www.fortiguard.com/psirt/FG-IR-25-125 rapid7:www.fortiguard.com

NVD-tagged references (1)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://fortiguard.fortinet.com/psirt/FG-IR-25-125 psirt@fortinet.com Vendor Advisory

Remediations (10)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

CVE-2025-46373 - Vulnerability Details - OpenCVE

web:app.opencve.io

A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections

2026-05-22 13:54 UTC
CVE-2025-46373 - Fortinet FortiClient Heap-based Buffer Overflow ...

web:cvefeed.io

A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys". The attacker would need to bypass the Windows heap integrity protections

2026-05-22 13:54 UTC
CVE-2025-46373 - Exploits & Severity - Feedly

web:feedly.com

Nov 18, 2025 at 9:36 AM Detection in Vulnerability Scanners Detection for the vulnerability has been added to Qualys (386061) Nov 18, 2025 at 11:53 PM Vendor Advisory RedHat CVE advisory released a security advisory ( CVE-2025-46373 ).

2026-05-22 13:54 UTC
A new and improved community patch for BO3. - GitHub

web:github.com

A new and improved community patch for BO3. . Contribute to shiversoftdev/t7patch development by creating an account on GitHub.

2026-05-22 13:54 UTC
Nvd - Cve-2025-53773

web:nvd.nist.gov

An official website of the United States government Here's how you know

2026-05-22 13:54 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-22 13:54 UTC
FortiClient 7.2.0-7.4.3 Heap Overflow in fortips_74.sys (CWE122)

web:stack.watch

CVE-2025-46373 Published on November 18, 2025 A Heap-based Buffer Overflow vulnerability [CWE-122] vulnerability in Fortinet FortiClientWindows 7.4.0 through 7.4.3, FortiClientWindows 7.2.0 through 7.2.8 may allow an authenticated local IPSec user to execute arbitrary code or commands via "fortips_74.sys".

2026-05-22 13:54 UTC
CVE-2025-46373 - vulmon.com

web:vulmon.com

Vulnerability Summary A heap-based buffer overflow vulnerability exists in Fortinet FortiClient for Windows versions 7.4.0 through 7.4.3 and 7.2.0 through 7.2.8. The issue is found in the "fortips_74.sys" driver and could potentially allow an authenticated local IPSec user to execute arbitrary code or commands. To successfully exploit this vulnerability, an attacker would need to bypass ...

2026-05-22 13:54 UTC
Oracle Critical Patch Update Advisory - April 2026

web:www.oracle.com

This Critical Patch Update contains 481 new security patches across the product families listed below. Please note that an MOS note summarizing the content of this Critical Patch Update and other Oracle Software Security Assurance activities is located at April 2026 Critical Patch Update: Executive Summary and Analysis.

2026-05-22 13:54 UTC
VirusTotal - Home

web:www.virustotal.com

Streamline your investigations with Google Threat Intelligence Agentic and the new Dark Web (DDW) module. Perform hunting and pivoting across forums using natural language or specific modifiers. Bridge threat actor identities and map global operations easy.

2026-05-22 13:54 UTC

AI Forensic Analysis

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Raw JSON

The full cvelistV5 record. Download as CVE-2025-46373.json.

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