{"id":"CVE-2026-21643","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-21643","generatedAt":"2026-10-31T06:00:27.882Z","title":"Fortinet FortiClient EMS SQL Injection Vulnerability","description":"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.","published":"2026-02-06T09:15:49.000Z","lastModified":"2026-06-17T10:18:52.000Z","status":"Analyzed","sourceIdentifier":"psirt@fortinet.com","cvss":{"version":"3.1","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-89"],"affected":["fortinet/forticlientems"],"epss":{"score":0.97735,"percentile":0.99904,"date":"2026-10-30","history":[{"date":"2026-10-25","score":0.97735,"percentile":0.99904}]},"kev":{"listed":true,"dateAdded":"2026-04-13","dueDate":"2026-04-16","knownRansomwareCampaignUse":"Unknown","notes":"Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.\nhttps://fortiguard.fortinet.com/psirt/FG-IR-25-1142 ; https://nvd.nist.gov/vuln/detail/CVE-2026-21643"},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"urgent","text":"Known to be exploited in the wild (CISA KEV, CISA remediation deadline 16 April 2026). Treat as an emergency change: patch or isolate now, then hunt for prior compromise."},"changes":[],"references":[{"url":"https://fortiguard.fortinet.com/psirt/FG-IR-25-1142","tags":["Vendor Advisory"],"source":"psirt@fortinet.com"},{"url":"https://github.com/0xBlackash/CVE-2026-21643/blob/main/cve-2026-21643.py","tags":["Exploit"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-21643","tags":["US Government Resource"],"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-21643","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}