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Request smuggling attack in FortiOS

🗓️ 10 Feb 2026 00:00:00Reported by FortiGuard LabsType 
fortinet
 fortinet
🔗 fortiguard.fortinet.com👁 16 Views

HTTP request smuggling in FortiOS allows unauthenticated attackers to bypass firewall policies.

Related
Detection
ReporterTitlePublishedViews
Family
bdu_fstec
BDU FSTEC
Fortinet FortiOS GUI Redirect
16 Feb 202600:00
–bdu_fstec
circl
Circl
CVE-2025-55018
11 Feb 202613:55
–circl
cnnvd
CNNVD
Fortinet FortiOS environmental issues vulnerabilities
10 Feb 202600:00
–cnnvd
cve
CVE
CVE-2025-55018
10 Feb 202615:39
–cve
cvelist
Cvelist
CVE-2025-55018
10 Feb 202615:39
–cvelist
nessus
Tenable Nessus
Fortinet Fortigate (FG-IR-25-667)
10 Feb 202600:00
–nessus
nessus
Tenable Nessus
Siemens APE1808 Inconsistent Interpretation of HTTP Requests (CVE-2025-55018)
23 Mar 202600:00
–nessus
ncsc
NCSC
Vulnerabilities fixed in Siemens products
10 Mar 202612:39
–ncsc
nvd
NVD
CVE-2025-55018
10 Feb 202616:16
–nvd
osv_cve
osv_cve
CVE-2025-55018
10 Feb 202616:16
–osv_cve
Rows per page
Vulners
Node
OR
fortinetfortiosMatch7.6.0
fortinetfortiosRange7.4.0–7.4.9
fortinetfortiosRange7.2–7.3
fortinetfortiosRange7.0–7.1
fortinetfortiosRange6.4.3–6.4.16

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26 Feb 2026 00:00Current
5.8Medium risk
Vulners AI Score5.8
CVSS 3.15.8
EPSS0.00402
SSVC
16