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FortiWeb 5.1

SKU FORTIWEB-5.1

Fortinet · OS release · FortiWeb Series

Unsupported since · 3400 days ago

FortiWeb 5.1 reached end of support on (3400 days ago).

Notice published
12y 10mo ago
End of support
9y 4mo ago

Lifecycle Milestones

Lifecycle notice published 12y 10mo ago
Last date of support 9y 4mo ago

Known Exploited Vulnerabilities

5 CVEs in CISA's Known Exploited Vulnerabilities catalog are recorded against the Fortinet platform this release belongs to and may apply to this release; verify against the vendor advisory before acting. Fortinet support for this release stopped on . Where one applies, upgrade, isolate, or compensate.

CVE KEV added Vulnerability Flags
CVE-2025-59718 Fortinet Multiple Products Improper Verification of Cryptographic Signature Vulnerability
KEV added 2025-12-16
CVE-2025-58034 Fortinet FortiWeb OS Command Injection Vulnerability
KEV added 2025-11-18
CVE-2025-64446 Fortinet FortiWeb Path Traversal Vulnerability
KEV added 2025-11-14
CVE-2025-25257 Fortinet FortiWeb SQL Injection Vulnerability
KEV added 2025-07-18
CVE-2024-23113 Fortinet Multiple Products Format String Vulnerability
KEV added 2024-10-09

Source: CISA Known Exploited Vulnerabilities catalog. The Ransomware flag reflects CISA's own knownRansomwareCampaignUse field, set when the CVE has been observed in ransomware campaigns per their threat intel. It's not a property of the vulnerability description itself.

Correlation is at the platform level, not per-OS-version (entries disclosed well before this release train shipped are left out). Not exhaustive: KEV only lists actively-exploited CVEs and many relevant unexploited vulnerabilities are not here. Verify against vendor security advisories (PSIRT, JSA, PAN-SA) and NVD before acting. See compensating controls if refresh isn't immediate.

Is FortiWeb 5.1 still maintained?

No. Fortinet no longer maintains FortiWeb 5.1; support ended on 2017-07-20. It receives no fixes of any kind, including security patches. Plan an upgrade to a maintained release. See Fortinet's lifecycle bulletin.

When do security fixes for FortiWeb 5.1 stop?

Fortinet has not published an end-of-engineering date for FortiWeb 5.1.

What should I upgrade FortiWeb 5.1 to?

Upgrade to a currently maintained Fortinet release. Check Fortinet's release notes for the recommended version.

Which known-exploited CVEs may apply to the FortiWeb 5.1?

5 CVEs in CISA's Known Exploited Vulnerabilities catalog are recorded against Fortinet FortiWeb and may apply to FortiWeb 5.1, whose security fixes stopped on 2017-07-20. Verify each against the vendor advisory for the fixed releases before acting. See the Known Exploited Vulnerabilities table for the full list.

FortiWeb 5.1 Release Lifecycle

FortiWeb 5.1 is a Fortinet FortiWeb software release. Releases are maintained on a fixed schedule: Fortinet ships fixes and security patches until the release reaches end of engineering, after which a device must be upgraded to a maintained release to stay patchable. The dates below are milestones for the software train, not for any specific appliance — hardware running this release has its own separate lifecycle. This product has reached end of life as of , meaning Fortinet no longer provides technical support, software updates, or hardware replacement for this product. Organizations still running the FortiWeb 5.1 should plan a migration .

Applicable Platforms

FortiWeb

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