CVE-2023-41675: Webproxy process denial of service

Published Oct 10, 2023
·
Updated

A use after free vulnerability [CWE-416] in FortiOS & FortiProxy may allow an unauthenticated remote attacker to crash the Web Proxy process via multiple crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.

Other sources

A use after free vulnerability [CWE-416] in FortiOS version 7.2.0 through 7.2.4 and version 7.0.0 through 7.0.10 and FortiProxy version 7.2.0 through 7.2.2 and version 7.0.0 through 7.0.8 may allow an unauthenticated remote attacker to crash the WAD process via multiple crafted packets reaching proxy policies or firewall policies with proxy mode alongside SSL deep packet inspection.

Affected Software

6 affected components
Fortinet FortiProxy>=7.0.0<=7.0.8
Fortinet FortiProxy=7.2.0
Fortinet FortiProxy=7.2.1
Fortinet FortiProxy=7.2.2
Fortinet FortiOS>=7.0.0<=7.0.10
Fortinet FortiOS>=7.2.0<=7.2.4

Remediation

Information

Please upgrade to FortiOS version 7.4.0 or above Please upgrade to FortiOS version 7.2.5 or above Please upgrade to FortiOS version 7.0.11 or above Please upgrade to FortiProxy version 7.2.3 or above Please upgrade to FortiProxy version 7.0.9 or above FortiSASE is no longer impacted, issue remediated Q2/23

Event History

Oct 10, 2023
Advisory Published
via FortiGuard·12:00 AM
Data Sourced
via FortiGuard·12:00 AM
DescriptionSeverityWeaknessAffected Software
CVE Published
via MITRE·04:49 PM
Data Sourced
via MITRE·04:49 PM
RemedyDescriptionSeverityWeakness
Oct 25, 2024
Advisory Published
via FortiGuard·11:28 PM

Frequently Asked Questions

1

What is CVE-2023-41675?

CVE-2023-41675 is a use after free vulnerability in FortiOS and FortiProxy versions 7.0.0 through 7.0.10 and 7.2.0 through 7.2.4.

2

What is the severity of CVE-2023-41675?

The severity of CVE-2023-41675 is medium with a CVSS score of 5.3.

3

How does CVE-2023-41675 affect FortiOS?

CVE-2023-41675 may allow an unauthenticated remote attacker to crash the WAD process in FortiOS.

4

How does CVE-2023-41675 affect FortiProxy?

CVE-2023-41675 may allow an unauthenticated remote attacker to crash the WAD process in FortiProxy.

5

Is there a fix available for CVE-2023-41675?

Yes, Fortinet has released fixes for CVE-2023-41675. It is recommended to update to the latest version of FortiOS or FortiProxy.

Company

Resources

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