Missing authentication for critical function in FortiMail - CVE-2026-126150
Published: November 11, 2026
Vulnerability identifier: #VU165042
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-126150
CWE-ID: CWE-306
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote non-authenticated attacker to read and manipulate data.
The vulnerability exists due to missing authentication for critical function. An unauthenticated attacker can reset the password of an arbitrary IBE webmail user and take over their account via specially crafted HTTP requests.
Affected software
FortiMail
How to mitigate CVE-2026-126150
Install update from vendor's website.
FortiMail - addressed in versions 7.2.10, 7.4.8, 7.6.6, 8.0.1