CVE-2026-126155
Fortinet FortiMail Improper Authorization Vulnerability
Description
A incorrect authorization vulnerability in Fortinet FortiMail 8.0.0 through 8.0.1, FortiMail 7.6.0 through 7.6.6, FortiMail 7.4.0 through 7.4.8, FortiMail 7.2 all versions may allow an unauthenticated remote attacker to obtain an authenticated IBE webmail session as any IBE recipient and read or send their encrypted mail via crafted HTTP requests.
INFO
Published Date :
Nov. 11, 2026, 9:29 p.m.
Last Modified :
Nov. 11, 2026, 9:29 p.m.
Remotely Exploit :
Yes !
Source :
fortinet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | CRITICAL | 6abe59d8-c742-4dff-8ce8-9b0ca1073da8 |
Solution
- Update FortiMail to a fixed version.
- Apply vendor-provided patches or firmware.
- Restrict access to the IBE webmail interface.
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CVE-2026-126155 vulnerability anywhere in the article.