What is CVE-2026-59841?

CVE-2026-59841 is a high-severity vulnerability in Fortinet Fortisiem, classified under CWE-923. CVSS score: 7.5/10. Published 2026-07-14.

How severe is CVE-2026-59841?

High severity. CVSS v3 base score is 7.5 out of 10.

Vulnerability in Fortinet Fortisiem

CVE-2026-59841

A improper restriction of communication channel to intended endpoints vulnerability in Fortinet FortiSIEMWindowsAgent 7.4.0 through 7.4.1 may allow attacker to escalation of privilege via <insert attack vector here>

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Fortinet Fortisiem
Fortinet Fortisiemwindowsagent — versions 7.4.0
Microsoft Windows

Weakness classification (CWE)

CWE-923

References

psirt@fortinet.com (Vendor Advisory)

Frequently asked questions

What is CVE-2026-59841?: CVE-2026-59841 is a high-severity vulnerability in Fortinet Fortisiem, classified under CWE-923. CVSS score: 7.5/10. Published 2026-07-14.
How severe is CVE-2026-59841?: High severity. CVSS v3 base score is 7.5 out of 10.