VULNERABILITY INTELLIGENCE
CVE-2021-26095
CVSS score7.5 HIGH
EPSS probability0.69%
CISA KEVNot currently listed
Published2021-07-20
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
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.
Primary references
- psirt@fortinet.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory