What’s Vulnerable › Vulnerabilities
CVE-2021-26099
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-07-12 · updated 2026-06-17
Description
Missing cryptographic steps in the Identity-Based Encryption service of FortiMail before 7.0.0 may allow an attacker who comes in possession of the encrypted master keys to compromise their confidentiality by observing a few invariant properties of the ciphertext.
Affected products
- Fortinet FortiMail: from 5.0 before 7.0.0 — fixed in 7.0.0
How to fix
Upgrade to a fixed version: Fortinet FortiMail 7.0.0. Check the vendor advisory for mitigations.
References
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