CVE-2025-43536: Use After Free

Published Dec 12, 2025
·
Updated

A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.2, iOS 18.7.3 and iPadOS 18.7.3, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2. Processing maliciously crafted web content may lead to an unexpected process crash.

Other sources

App Store. A permissions issue was addressed with additional restrictions.

— Apple

AppleJPEG. The issue was addressed with improved bounds checks.

— Apple

AppleMobileFileIntegrity. A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions.

— Apple

AppleMobileFileIntegrity. A permissions issue was addressed with additional restrictions.

— Apple

AppSandbox. A logic issue was addressed with improved file handling.

— Apple

Credit

Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), @@retsew0x01, Wojciech Regula(SecuRing), Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Nan Wang@@eternalsakura13, Google Big Sleep, Phil Pizlo(Epic Games), Google Threat Analysis Group, Apple, 이동하 (Lee Dong Ha(BoB 14th), Michael Reeves@@IntegralPilot, an anonymous researcher, Riley Walz, CVE-2024-7264, CVE-2025-9086, Yiğit Ocak, Andrew Calvano(Meta Product Security), Lucas Pinheiro(Meta Product Security), Duy Trần@@khanhduytran0, Kaitao Xie(Alibaba Group), Xiaolong Bai(Alibaba Group), CVE-2025-5918, Sumanth Rao(UC San Diego), Ye Shu(UC San Diego), Stefan Savage(UC San Diego), Aaron Schulman(UC San Diego), Geoffrey M. Voelker(UC San Diego), Enze Liu (Carnegie Mellon University), Rosyna Keller(Totally Not Malicious Software), Iván Savransky, Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Mickey Jin@@patch1t, floeki(IES Red Team of ByteDance), Zhongcheng Li(IES Red Team of ByteDance), Andrei Simion, piffz, Daniel Nurkin, Al Sadman Awal, Mohamed Hamdadou & Mahran Alhazmi, Hichem Maloufi, Christian Mina, Gerson Aldaz, qwerty j0y & Ricardo Garcia, Dorian Del Valle, Noah Gregory (wts.dev), iG0x72(XiguaSec), JJ(XiguaSec), Lehan Dilusha Jayasinghe, an anonymous researcher(Technische Hochschule Ingolstadt), Michael Schmutzer(Technische Hochschule Ingolstadt), Kirin@@Pwnrin, Jex Amro, Ron Elemans, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Csaba Fitzl@@theevilbit(Iru), Kenneth Chew, Haoling Zhou(SecLab of The Ohio State University), Shixuan Zhao@@NSKernel(SecLab of The Ohio State University), Chao Wang@@evi0s(SecLab of The Ohio State University), Zhiqiang Lin(SecLab of The Ohio State University), Atul R V, Morris Richman@@morrisinlife, Gergely Kalman@@gergely_kalman, Kay Belardinelli (Harvard University)

Affected Software

12 affected componentsFixes available
Apple iOS<26.2
26.2
Apple iPadOS<26.2
26.2
Apple Safari<26.2
26.2
Apple macOS Tahoe<26.2
26.2
Apple iOS<18.7.3
18.7.3
Apple iPadOS<18.7.3
18.7.3
Apple Safari<26.2
Apple iPadOS<18.7.3
Apple iPadOS>=26.0<26.2
Apple iPhone OS<18.7.3
Apple iPhone OS>=26.0<26.2
Apple macOS<26.2

Event History

Dec 12, 2025
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Dec 17, 2025
Data Sourced
via Red Hat·03:58 PM
DescriptionSeverityAffected Software
CVE Published
via MITRE·08:46 PM
Data Sourced
via MITRE·08:46 PM
DescriptionWeakness
Data Sourced
via NVD·09:16 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2025-43536?

CVE-2025-43536 has been classified as a high severity vulnerability due to its potential impact on affected systems.

2

How do I fix CVE-2025-43536?

To fix CVE-2025-43536, update your device to the latest version of iOS, iPadOS, or macOS Tahoe as specified in the advisory.

3

Which versions are affected by CVE-2025-43536?

CVE-2025-43536 affects multiple versions of iOS, iPadOS, and macOS Tahoe prior to 18.7.3 and 26.2 respectively.

4

What type of issue does CVE-2025-43536 address?

CVE-2025-43536 addresses a permissions issue and a downgrade issue affecting Intel-based Mac computers.

5

Is CVE-2025-43536 related to Apple components?

Yes, CVE-2025-43536 is specifically related to Apple components including AppleJPEG and AppleMobileFileIntegrity.

Company

Resources

Contact

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