CVE-2021-26099 Weak cryptography in Fortinet FortiMail

What is CVE-2021-26099?

CVE-2021-26099 is a medium-severity vulnerability in Fortinet FortiMail, published on 12 Jul 2021. An attacker needs administrator access to exploit it, with no action from the victim.

Official 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.

Which versions are affected by CVE-2021-26099?

It affects 1 product.

Products include Fortinet Fortimail.

How do I fix CVE-2021-26099?

No fix has been published for CVE-2021-26099 yet. Limit exposure of the affected software until one is available.

Is CVE-2021-26099 being exploited?

There is no known exploitation of CVE-2021-26099 in the wild and no public exploit code.

Other vulnerabilities in Fortinet FortiMail

• CVE-2026-104286 Fortinet FortiMail Path Traversal Exploited Critical 9.8
• CVE-2021-36166 Auth bypass in Fortinet FortiMail Critical 9.8
• CVE-2021-24007 SQL injection in Fortinet FortiMail Critical 9.8
• CVE-2020-9294 Auth bypass in FortiMail Critical 9.8
• CVE-2023-47539 Auth bypass in FortiMail Critical 9.0

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-p3qq-3w96-8x5w.