CVE-2022-26122

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.

Category

4.7
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.10%
Vendor Advisory fortiguard.com
Affected: Fortinet Fortinet AV Engine, FortiMail, FortiOS, FortiClient
Published at:
Updated at:

References

Link Tags
https://fortiguard.com/psirt/FG-IR-22-074 patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2022-26122?
CVE-2022-26122 has been scored as a medium severity vulnerability.
How to fix CVE-2022-26122?
To fix CVE-2022-26122, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2022-26122 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2022-26122 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2022-26122?
CVE-2022-26122 affects Fortinet Fortinet AV Engine, FortiMail, FortiOS, FortiClient.
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