CVE-2025-43518: Input Validation

Published Dec 12, 2025
·
Updated

A logic issue was addressed with improved checks. This issue is fixed in iOS 26.2 and iPadOS 26.2, macOS Sequoia 15.7.3, macOS Sonoma 14.8.3, macOS Tahoe 26.2, watchOS 26.2. An app may be able to inappropriately access files through the spellcheck API.

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

AppleMobileFileIntegrity. The issue was addressed by adding additional logic.

— Apple

Credit

Michael Reeves@@IntegralPilot, an anonymous researcher, Jex Amro, Wojciech Regula(SecuRing), Riley Walz, CVE-2024-7264, CVE-2025-9086, Noah Gregory (wts.dev), Andrew Calvano(Meta Product Security), Lucas Pinheiro(Meta Product Security), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Kaitao Xie(Alibaba Group), Xiaolong Bai(Alibaba Group), CVE-2025-5918, Rosyna Keller(Totally Not Malicious Software), 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), Iván Savransky, Mickey Jin@@patch1t, Amy@@asentientbot, Gergely Kalman@@gergely_kalman, Kay Belardinelli (Harvard University), Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Yiğit Ocak, floeki(IES Red Team of ByteDance), Zhongcheng Li(IES Red Team of ByteDance), Duy Trần@@khanhduytran0, Google Threat Analysis Group, Kirin@@Pwnrin, Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Phil Pizlo(Epic Games), Apple, Google Big Sleep, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Nan Wang@@eternalsakura13, 이동하 (Lee Dong Ha(BoB 14th), 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, iG0x72(XiguaSec), JJ(XiguaSec), Lehan Dilusha Jayasinghe, 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), an anonymous researcher(Technische Hochschule Ingolstadt), Michael Schmutzer(Technische Hochschule Ingolstadt), Ron Elemans, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Csaba Fitzl@@theevilbit(Iru), Kenneth Chew, Atul R V, @@retsew0x01, Morris Richman@@morrisinlife

Affected Software

8 affected componentsFixes available
Apple macOS Tahoe<26.2
26.2
Apple macOS Sonoma<14.8.3
14.8.3
Apple iOS<26.2
26.2
Apple iPadOS<26.2
26.2
Apple WatchOS<26.2
26.2
Apple macOS Sequoia<15.7.3
15.7.3
Apple macOS<14.8.3
Apple macOS>=15.0<15.7.3

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
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
CVE Published
via MITRE·08:57 PM
Data Sourced
via MITRE·08:57 PM
DescriptionWeakness
Data Sourced
via NVD·09:15 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-2025-43518?

CVE-2025-43518 is a vulnerability related to a logic issue that can allow file access through the spellcheck API.

2

How do I fix CVE-2025-43518?

To fix CVE-2025-43518, update to the latest versions of macOS Sonoma 14.8.3, macOS Sequoia 15.7.3, or other affected Apple products to ensure the security enhancements are applied.

3

Which Apple products are affected by CVE-2025-43518?

Affected products include macOS Sonoma, macOS Sequoia, iOS, iPadOS, watchOS, and macOS Tahoe.

4

What type of vulnerability is CVE-2025-43518?

CVE-2025-43518 is classified as a logic issue that involves improper file access through application programming interfaces.

5

Is there a workaround for CVE-2025-43518 if I can't update right now?

Currently, the best mitigation for CVE-2025-43518 is to update to the patched versions provided by Apple, as there are no alternative workarounds suggested.

Company

Resources

Contact

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