High severity7.5NVD Advisory· Published Jul 9, 2021· Updated Jun 17, 2026
CVE-2021-24020
CVE-2021-24020
Description
A missing cryptographic step in the implementation of the hash digest algorithm in FortiMail 6.4.0 through 6.4.4, and 6.2.0 through 6.2.7 may allow an unauthenticated attacker to tamper with signed URLs by appending further data which allows bypass of signature verification.
Affected products
3Patches
Vulnerability mechanics
References
1- fortiguard.com/advisory/FG-IR-21-027nvdVendor Advisory
News mentions
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