VULNERABILITY INTELLIGENCE
CVE-2022-26122
CVSS score4.7 MEDIUM
EPSS probability0.63%
CISA KEVNot currently listed
Published2022-11-02
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N
Description
An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines version 6.2.168 and below and version 6.4.274 and below may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.
Weakness classification
- nvd@nist.gov: CWE-345
Primary references
- psirt@fortinet.com — Patch, Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Patch, Vendor Advisory