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Status published
Medium
CVE-2022-26122
An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient,...
Vulnerability 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.
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
References
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Affected Vendor
Fortinet
View all reports →Affected Software
Fortinet AV Engine, FortiMail, FortiOS, FortiClient
Vulnerable Versions:
AV Engine version 6.2.168 and below and version 6.4.274 and below.
Timeline
Official Publish:
November 2nd, 2022
Last Modified:
October 22nd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N/E:P/RL:U/RC:R
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.