CVE-2025-43355

Name: CVE-2025-43355
Creator: NVD / NIST
Published: 2025-09-15T23:15:37.41+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.5/10EPSS 0.22%

Last modified Jun 17, 2026

CVE-2025-43355 is a medium-severity vulnerability rated 5.5/10 on the CVSS scale. A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Sequoia 15.7, macOS Sonoma 14.8, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. EPSS estimates a 0.22% chance of exploitation in the next 30 days.

Description

A type confusion issue was addressed with improved memory handling. This issue is fixed in iOS 18.7 and iPadOS 18.7, iOS 26 and iPadOS 26, macOS Sequoia 15.7, macOS Sonoma 14.8, macOS Tahoe 26, tvOS 26, visionOS 26, watchOS 26. An app may be able to cause a denial-of-service.

Metrics

CVSS 3.1

5.5/10

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

EPSS Probability

0.22%

12.1th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-843

Affected Software

Vendor	Product	Versions
Apple	Ipados	< 18.7
Apple	Iphone Os	< 18.7
Apple	Macos	>= 14.0, < 14.8
Apple	Macos	>= 15.0, < 15.7
Apple	Tvos	< 26.0
Apple	Visionos	< 26.0
Apple	Watchos	< 26.0

References

https://support.apple.com/en-us/125108Release Notes, Vendor Advisory
https://support.apple.com/en-us/125109Release Notes, Vendor Advisory
https://support.apple.com/en-us/125110
https://support.apple.com/en-us/125111Release Notes, Vendor Advisory
https://support.apple.com/en-us/125112Release Notes, Vendor Advisory
https://support.apple.com/en-us/125114Release Notes, Vendor Advisory
https://support.apple.com/en-us/125115Release Notes, Vendor Advisory
https://support.apple.com/en-us/125116Release Notes, Vendor Advisory
http://seclists.org/fulldisclosure/2025/Sep/49
http://seclists.org/fulldisclosure/2025/Sep/53
http://seclists.org/fulldisclosure/2025/Sep/54
http://seclists.org/fulldisclosure/2025/Sep/55
http://seclists.org/fulldisclosure/2025/Sep/56
http://seclists.org/fulldisclosure/2025/Sep/57
http://seclists.org/fulldisclosure/2025/Sep/58

Timeline

Published: Sep 15, 2025
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2025-43355?

How severe is CVE-2025-43355?

CVE-2025-43355 has a CVSS score of 5.5/10 (MEDIUM severity). The EPSS model estimates a 0.22% probability of exploitation in the next 30 days.

How do I fix CVE-2025-43355?

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-2025-43355?

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

Scan your code now

Source: NVD / NIST