SB2026111195 - Improper Authentication in FortiMail
Published: November 11, 2026
Security Bulletin ID
SB2026111195
CSH Severity
High
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Remote access
Highest impact
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Improper Authentication (CVE-ID: CVE-2026-126160)
CWE-ID: CWE-287 - Improper Authentication
CVSSv4: 8.8 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N]
The vulnerability allows a remote non-authenticated attacker to #BASIC_IMPACT#.
The vulnerability exists due to improper authentication in releasecontrol. An unauthenticated attacker can escalate privileges and release or delete quarantined messages for arbitrary mailboxes via a crafted quarantine release requests.
Remediation
Install update from vendor's website.