CVE-2023-40441

Name: CVE-2023-40441
Creator: NVD / NIST
Published: 2023-09-27T15:19:16.137+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.91%

Last modified Jun 17, 2026

CVE-2023-40441 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. EPSS estimates a 0.91% chance of exploitation in the next 30 days.

Description

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.

Metrics

CVSS 3.1

6.5/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

EPSS Probability

0.91%

55.5th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-400

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 17.0
Apple	Iphone Os	< 17.0
Apple	Macos	< 14.0

References

http://seclists.org/fulldisclosure/2023/Oct/3Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/8Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT213938Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213940Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2023/Oct/3Mailing List, Third Party Advisory
http://seclists.org/fulldisclosure/2023/Oct/8Mailing List, Third Party Advisory
https://support.apple.com/en-us/HT213938Release Notes, Vendor Advisory
https://support.apple.com/en-us/HT213940Release Notes, Vendor Advisory
https://support.apple.com/kb/HT213938
https://support.apple.com/kb/HT213940

Timeline

Published: Sep 27, 2023
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2023-40441?

A resource exhaustion issue was addressed with improved input validation. This issue is fixed in iOS 17 and iPadOS 17, macOS Sonoma 14. Processing web content may lead to a denial-of-service.

How severe is CVE-2023-40441?

CVE-2023-40441 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.91% probability of exploitation in the next 30 days.

How do I fix CVE-2023-40441?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2023-40441?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST