What is the severity of CVE-2023-42785?

CVE-2023-42785 is categorized as a denial of service vulnerability.

How do I fix CVE-2023-42785?

To resolve CVE-2023-42785, upgrade FortiOS to version 7.4.2 or later, or to versions 7.2.6 and above.

What versions of FortiOS are affected by CVE-2023-42785?

CVE-2023-42785 affects FortiOS versions 7.4.0 to 7.4.1, 7.2.0 to 7.2.5, and all versions of 7.0, 6.4, 6.2, and 6.0.

What type of attack can be performed using CVE-2023-42785?

An attacker can exploit CVE-2023-42785 to trigger a denial of service condition by sending a crafted HTTP request.

Is there a known workaround for CVE-2023-42785?

Currently, there is no documented workaround for CVE-2023-42785; the only mitigation is to upgrade to a patched version.

Vulnerability/
CVE-2023-42785

medium

6.5

CWE

476

14/1/2025

17/1/2025

CVE-2023-42785: Null Pointer Dereference

First published: Tue Jan 14 2025(Updated: )

A null pointer dereference in FortiOS versions 7.4.0 through 7.4.1, 7.2.0 through 7.2.5, 7.0 all versions, 6.4 all versions , 6.2 all versions and 6.0 all versions allows attacker to trigger a denial of service via a crafted http request.

Credit: psirt@fortinet.com

Affected Software	Affected Version	How to fix
Fortinet FortiOS IPS Engine	>=6.0.0<7.2.6
Fortinet FortiOS IPS Engine	>=7.4.0<7.4.2

Remedy

Please upgrade to FortiSASE version 23.4.a or above Please upgrade to FortiOS version 7.4.2 or above Please upgrade to FortiOS version 7.2.6 or above

Never miss a vulnerability like this again

Reference Links

https://fortiguard.fortinet.com/psirt/FG-IR-23-293

Frequently Asked Questions

What is the severity of CVE-2023-42785?
CVE-2023-42785 is categorized as a denial of service vulnerability.
How do I fix CVE-2023-42785?
To resolve CVE-2023-42785, upgrade FortiOS to version 7.4.2 or later, or to versions 7.2.6 and above.
What versions of FortiOS are affected by CVE-2023-42785?
CVE-2023-42785 affects FortiOS versions 7.4.0 to 7.4.1, 7.2.0 to 7.2.5, and all versions of 7.0, 6.4, 6.2, and 6.0.
What type of attack can be performed using CVE-2023-42785?
An attacker can exploit CVE-2023-42785 to trigger a denial of service condition by sending a crafted HTTP request.
Is there a known workaround for CVE-2023-42785?
Currently, there is no documented workaround for CVE-2023-42785; the only mitigation is to upgrade to a patched version.

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version/fortinet fortios ips engine/6.0.0
version/fortinet fortios ips engine/7.4.0

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