CVE-2025-57716 — An Uncontrolled Search Path Element vulnerability [CWE-427] in FortiClient Windows 7.4.0 through 7.4.3, 7.2.0 through 7.2.11, 7.0 all versions may allow a local low privileged user to perform a DLL hijacking attack via placing a malicious DLL to the FortiClient Online Installer installation folder

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HIGH

An Uncontrolled Search Path Element vulnerability [CWE-427] in FortiClient Windows 7.4.0 through 7.4.3, 7.2.0 through 7.2.11, 7.0 all versions may allow a local low privileged user to perform a DLL hijacking attack via placing a malicious DLL to the FortiClient Online Installer installation folder

Published Oct 14, 2025

7.3

HIGH

CVSS 3.1

EPSS 0.18%

Description

An Uncontrolled Search Path Element vulnerability [CWE-427] in FortiClient Windows 7.4.0 through 7.4.3, 7.2.0 through 7.2.11, 7.0 all versions may allow a local low privileged user to perform a DLL hijacking attack via placing a malicious DLL to the FortiClient Online Installer installation folder.

Affected products

Vendor Fortinet Product FortiClientWindows Default
unaffected
- Version
  7.0.0
  Status
  affected
  Constraints
  <=7.0.14
- Version
  7.2.0
  Status
  affected
  Constraints
  <=7.2.11
- Version
  7.4.0
  Status
  affected
  Constraints
  <=7.4.3

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

FortiClientWindows

unaffected

Version	Status	Constraints
7.0.0	affected	<=7.0.14
7.2.0	affected	<=7.2.11
7.4.0	affected	<=7.4.3

Remediation

Vendor solution

Upgrade to FortiClientWindows version 7.4.4 or above Upgrade to FortiClientWindows version 7.2.12 or above

Metrics

0.18% 0.00176

Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.

EPSS probability 0.00176

Score over time

2025–2026

EPSS v4
EPSS v5

Percentile over time

EPSS v4
EPSS v5

Table of values (3 key points)

Flat stretches are collapsed; showing up to 120 newest points.

Date	Score	Percentile	Model
Oct 3, 2026	0.18% (0.00176)	6.53th	v5 (v2026.06.15)
Jun 15, 2026	0.16% (0.00161)	5.64th	v5 (v2026.06.15)
Oct 15, 2025	0.01% (0.00013)	1.55th	v4 (v2025.03.14)

Weaknesses (1)

CWE-427

References (1)

https://fortiguard.fortinet.com/psirt/FG-IR-25-685
Vendor Advisory

Link	Providers	Tags
https://fortiguard.fortinet.com/psirt/FG-IR-25-685		Vendor Advisory

Change history (0)

No recorded changes yet.

Sources

CVE.org / MITRE

Status PUBLISHED

Assigner fortinet

Published Oct 14, 2025

Updated Feb 26, 2026

Reserved Aug 18, 2025

Link CVE-2025-57716

CISA Vulnrichment

Updated Oct 17, 2025

NVD

Status Analyzed

Modified Jun 17, 2026

Link CVE-2025-57716

Red Hat

Severity n/a

Public date n/a

Links CVE-2025-57716