Session Management Vulnerability in FortiMail 6.4.0 - 6.4.4 and 6.2.0 - 6.2.6

CVE-2021-26095

The combination of various cryptographic issues in the session management of FortiMail 6.4.0 through 6.4.4 and 6.2.0 through 6.2.6, including the encryption construction of the session cookie, may allow a remote attacker already in possession of a cookie to possibly reveal and alter or forge its content, thereby escalating privileges.

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