CVE-2021-26095

HighCVSS 8.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 8.8/10CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published
Jul 20, 2021
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2021-26095: High severity, CVSS 8.8 | Vulnix