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Fortinet Vulnerabilities: FortiOS, FortiGate, FortiMail and More

8 advisoriesUpdated

FortiOS and the wider Fortinet product line run the SSL-VPN and firewall edge for a large share of mid-size enterprises, and Fortinet flaws are among the most frequent entries in the CISA KEV catalog. Several have been used for initial access by ransomware affiliates and state-aligned groups.

The table lists the Fortinet advisories we have covered, newest first. Fortinet's PSIRT publishes fixed versions per product branch; the linked stories list the branch-by-branch upgrade path and any interim workaround.

Advisories

Fortinet advisories: ID, product, severity, CISA KEV status and fix
IDProduct & issueSeverityKEVFixPublished
CVE-2026-14851Fortinet FortiOS Token LeakHighNoFortiOS 7.4.5, 7.2.9, 7.6.1; FortiProxy 7.4.3
CVE-2026-104286Fortinet FortiMail RCECriticalNoVendor advisory
CVE-2026-26084Fortinet FortiSandbox ExposureHighNoVendor advisory
CVE-2026-84388Fortinet FortiPAM Auth BypassCriticalNoVendor advisory
CVE-2026-25089Fortinet FortiSandbox RCECriticalNoSee remediation
CVE-2025-68686Fortinet FortiOS SSL-VPN LeakHighYesVendor advisory
CVE-2026-35616Fortinet EMS Auth BypassCriticalNoSee remediation
—Twelve Zero-Days Weaponized in One Week Across Citrix, Cisco and FortinetCriticalYesVendor advisory

KEV: listed in CISA's Known Exploited Vulnerabilities catalog. “No” means not listed when we published, not that the flaw is safe to defer.

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