FortiManager-300E
Appliance
· FortiManager Series
Is the FortiManager-300E still supported?
No. Fortinet ended support for the FortiManager-300E on 2025-08-03. No further security fixes will be issued. See Fortinet's lifecycle bulletin.
When does the FortiManager-300E reach end of support?
Fortinet support for the FortiManager-300E ends on 2025-08-03.
What replaces the FortiManager-300E?
Fortinet has not published a successor model for the FortiManager-300E.
What known-exploited CVEs apply to the FortiManager-300E past end of support?
1 CVE in CISA's Known Exploited Vulnerabilities catalog apply to the platform the FortiManager-300E runs. These will not be patched on this device because it is past the Fortinet security-support date. See the Known Exploited Vulnerabilities table below for the full list.
Known Exploited Vulnerabilities
This device is past Fortinet's security-support date. 1 CVE in CISA's Known Exploited Vulnerabilities catalog apply to the platform it runs. Fortinet is not issuing patches for this model. Isolate, compensate, or refresh.
| CVE | KEV added | Vulnerability | Flags |
|---|---|---|---|
CVE-2026-24858
|
Fortinet Multiple Products Authentication Bypass Using an Alternate Path or Channel Vulnerability |
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. 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.
FortiManager-300E Lifecycle Overview
The Fortinet FortiManager-300E is a appliance product in the Fortinet FortiManager series. This product has reached end of life as of , meaning Fortinet no longer provides technical support, software updates, or hardware replacement for this product. It was last available for purchase on . Organizations still running the FortiManager-300E should plan a migration .
Lifecycle Milestones
| End of sale | 5y 12mo ago | |
|---|---|---|
| End of software maintenance | 1y 12mo ago | |
| Last date of support | 12mo ago |