CVE-2026-21643Critical· 9.1▾ Hadal⚠ Exploited in the wildPoC availableAn improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafte…
▾ Hadal zone — Critical and actively exploited (CISA KEV / 0day)
impact 50.1 · likelihood 19.5 · exploitation 25
A public proof-of-concept already exists for this vulnerability — see Exploit availability below.
Public exploit / PoC code seen in 2 sources. Availability, not in-the-wild use.
Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake. The CVSS score shown above comes from the assigning CNA record, not NVD.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Federal remediation due Apr 16, 2026
Last analysed / modified upstream
98%
2 GitHub repos · Nuclei ×1 (last check)
Added to the CISA catalog on Apr 13, 2026. Federal remediation due Apr 16, 2026. View catalog ↗
An improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.4 may allow an unauthenticated attacker to execute unauthorized code or commands via specifically crafted HTTP requests.
FortiClientEMS 7.4.4Upgrade to FortiClientEMS version 8.0.0 or above Upgrade to FortiClientEMS version 7.4.5 or above
Connected by shared product, vendor, weakness, or advisory.
CVE-2026-39809Medium· 6.2A improper neutralization of special elements used in an sql command ('sql injection') vulnerability in Fortinet FortiClientEMS 7.4.3 through 7.4.4, FortiClientEMS 7.4.0 through 7.4.1, FortiClientEMS 7.2.12, FortiClientEMS 7.2.0 through …
CVE-2025-59718Critical· 9.1A improper verification of cryptographic signature vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiProxy 7.6.0 through 7.6.3, FortiProxy…
CVE-2025-61624Medium· 6.0An Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') [CWE-22] vulnerability in Fortinet FortiOS 7.6.0 through 7.6.4, FortiOS 7.4.0 through 7.4.9, FortiOS 7.2 all versions, FortiOS 7.0 all versions, FortiOS 6.…
CVE-2026-104286Critical· 9.8An improper limitation of a pathname to a restricted directory ('path traversal') vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2.0 through 7.2.9 may al…
CVE-2025-25249High· 8.1A heap-based buffer overflow vulnerability in Fortinet FortiOS 7.6.0 through 7.6.3, FortiOS 7.4.0 through 7.4.8, FortiOS 7.2.0 through 7.2.11, FortiOS 7.0.0 through 7.0.17, FortiOS 6.4 all versions, FortiSwitchManager 7.2.0 through 7.2.6…
CVE-2017-18362Critical· 9.8ConnectWise ManagedITSync integration through 2017 for Kaseya VSA is vulnerable to unauthenticated remote commands that allow full direct access to the Kaseya VSA database