Vulnerability in FortiClient Windows (CVE-2025-57716)
Summary
Vulnerability in FortiClient Windows (CVE-2025-57716). Successful exploitation can lead to full system takeover.
Original description
The description as published by the source.
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.
Source: NIST National Vulnerability Database NVD
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2025-57716 has been found in FortiClient Windows.
Successful exploitation can lead to full system takeover. CVSS score: 6.7/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "FortiClient Windows CVE-2025-57716" on the vendor's site.
CVE-2025-57716 (FortiClient Windows) — CWE-427 / CVSS v3 6.7
Attack vector: local
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-427) exists in FortiClient Windows.
Check the vendor advisory for the affected versions of FortiClient Windows.
Severity: Medium (CVSS 6.7/10). Successful exploitation can lead to full system takeover.
Update to the patched release per vendor advisory.
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Audit SBOM/dependencies to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
Audit SBOM/dependencies for affected components.資産台帳・SBOM・依存マニフェストで FortiClient Windows を使っているサービスとバージョンを洗い出す。
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2Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
References
- patch psirt@fortinet.com