Vulnerabilities / CVE-2026-21643

CVE-2026-21643

Published 2026-02-06 · published (not yet in NVD)

CVE-2026-21643

Exploited in the wild: CISA added it to the Known Exploited Vulnerabilities catalog on 2026-04-13, with a fix-by date of 2026-04-16. Patch it first.

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

9.1 CRITICAL
CVSS 3.1 · CNA

98%
chance of exploitation in the next 30 days (EPSS; in the top 1% of all CVEs)

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.

Scores

9.1CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:F/RL:O/RC:CCNA

Affected products

Fortinet FortiClientEMS: 7.4.4

Weakness: CWE-89

1 references (advisories, patches, write-ups)

https://fortiguard.fortinet.com/psirt/FG-IR-25-1142

Sources: CVE.org, FIRST EPSS. Missing ones did not answer or have no record yet.

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