CVE-2025-43509: Input Validation

Published Dec 12, 2025
·
Updated

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

Other sources

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

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

— 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), Ron Elemans, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Duy Trần@@khanhduytran0, Csaba Fitzl@@theevilbit(Iru), Kenneth Chew, Google Threat Analysis Group, Atul R V, an anonymous researcher(Technische Hochschule Ingolstadt), Michael Schmutzer(Technische Hochschule Ingolstadt), @@retsew0x01, Kirin@@Pwnrin, Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Morris Richman@@morrisinlife, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Nan Wang@@eternalsakura13, Google Big Sleep, Phil Pizlo(Epic Games), Apple, 이동하 (Lee Dong Ha(BoB 14th)

Affected Software

5 affected componentsFixes available
Apple macOS Sonoma<14.8.3
14.8.3
Apple macOS Sequoia<15.7.3
15.7.3
Apple macOS Tahoe<26.2
26.2
Apple macOS>=14.0<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
Description
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
CVE Published
via MITRE·08:56 PM
Data Sourced
via MITRE·08:56 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-2025-43509?

CVE-2025-43509 has been classified with a high severity rating due to its potential impact on the affected macOS versions.

2

How do I fix CVE-2025-43509?

To fix CVE-2025-43509, users should update their macOS devices to the latest version specified by Apple.

3

Which software versions are affected by CVE-2025-43509?

CVE-2025-43509 affects macOS Tahoe up to version 26.2, macOS Sonoma up to version 14.8.3, and macOS Sequoia up to version 15.7.3.

4

What type of issue is CVE-2025-43509?

CVE-2025-43509 addresses a permissions issue along with improved bounds checks and code-signing restrictions.

5

Is there a specific update I should install for CVE-2025-43509?

Yes, users should install the latest available updates that specifically address CVE-2025-43509 to mitigate the vulnerability.

Company

Resources

Contact

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