FG-IR-22-074: Evasion by manipulating MIME attachment

Published Nov 1, 2022
·
Updated

An insufficient verification of data authenticity vulnerability [CWE-345] in FortiClient, FortiMail and FortiOS AV engines may allow an attacker to bypass the AV engine via manipulating MIME attachment with junk and pad characters in base64.

Affected Software

3 affected components
Fortinet FortiClient
Fortinet FortiMail
Fortinet FortiOS

Event History

Nov 1, 2022
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
Oct 25, 2024
Advisory Published
via FortiGuard·12:00 AM
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of FG-IR-22-074?

The severity of FG-IR-22-074 is classified as critical due to the potential for attackers to bypass the AV engine.

2

How do I fix FG-IR-22-074?

To fix FG-IR-22-074, ensure your FortiClient, FortiMail, and FortiOS products are updated to the latest version provided by Fortinet.

3

What products are affected by FG-IR-22-074?

FG-IR-22-074 affects FortiClient, FortiMail, and FortiOS AV engines.

4

What type of vulnerability is FG-IR-22-074?

FG-IR-22-074 is an insufficient verification of data authenticity vulnerability, specifically categorized under CWE-345.

5

Can FG-IR-22-074 be exploited remotely?

Yes, FG-IR-22-074 can potentially be exploited remotely by attackers manipulating MIME attachments.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203