CVE-2025-43320: Buffer Overflow

Published Sep 15, 2025
·
Updated

AirPort. A permissions issue was addressed with additional restrictions.

Other sources

AMD. A buffer overflow was addressed with improved bounds checking.

Apple

AppKit. The issue was resolved by blocking unsigned services from launching on Intel Macs.

Apple

Apple Neural Engine. An out-of-bounds access issue was addressed with improved bounds checking.

Apple

Apple Online Store Kit. A permissions issue was addressed with additional restrictions.

Apple

AppleJPEG. The issue was addressed with improved bounds checks.

Apple

Credit

Michael Reeves@@IntegralPilot, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), an anonymous researcher, Jex Amro, Wojciech Regula(SecuRing), Riley Walz, CVE-2024-7264, CVE-2025-9086, Yiğit Ocak, 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), Mickey Jin@@patch1t, Amy@@asentientbot, Gergely Kalman@@gergely_kalman, Kay Belardinelli (Harvard University), Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Csaba Fitzl@@theevilbit(Kandji), Kirin@@Pwnrin, ABC Research s.r.o., Nolan Astrein(Kandji), Mickey Jin@@patch1t(Cisco Talos), Kirin@@Pwnrin(Cisco Talos), Zhongquan Li@@Guluisacat, Bilal Siddiqui, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Dawuge(Shuffle Team), Guilherme Rambo(Best Buddy Apps), Yinyi Wu@@_3ndy1(Dawn Security Lab of JD), @@zlluny(Trend Micro Zero Day Initiative), 이동하 (Lee Dong Ha)(SSA Lab), Zhongcheng Li(IES Red Team of ByteDance), Matej Moravec@@MacejkoMoravec, Shantanu Thakur, Wang Yu(Cyberserval), Anonymous(Trend Micro Zero Day Initiative), Jian Lee@@speedyfriend433, Yiğit Can YILMAZ@@yilmazcanyigit, Keisuke Hosoda, Ye Zhang@@VAR10CK(Baidu Security), Viktor Oreshkin, Nathaniel Oh@@calysteon, Hikerell (Loadshine Lab), Rodolphe Brunetti@@eisw0lf(Lupus Nova), LFY@@secsys(Fudan University), CVE-2025-40909, @@zlluny, CVE-2024-27280, KPC(Cisco Talos), @@RenwaX23, Ye Zhang(Baidu Security), pattern-f@@pattern_F_, 정답이 아닌 해답, Kirin@@Pwnrin(Computer Science), Cristian Dinca(Computer Science), Romania, CVE-2025-6965, JZ, Seo Hyun-gyu@@wh1te4ever, Luke Roberts@@rookuu, Ferdous Saljooki@@malwarezoo(Jamf), Justin Elliot Fu, Pyrophoria(GrapheneOS), an anonymous researcher(GrapheneOS), James J Kalafus, Michel Migdal, ken super, Jaydev Ahire, Big Bear, Ignacio Sanmillan@@ulexec, Mike Cardwell(grepular), Bob Lord, Pawel Wylecial(REDTEAM)

Affected Software

3 affected componentsFixes available
Apple macOS Sequoia<15.7.3
15.7.3
Apple macOS Tahoe<26
26
Apple macOS<15.7.3

Event History

Sep 15, 2025
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Dec 12, 2025
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected 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-2025-43320?

CVE-2025-43320 is considered a significant security vulnerability that could allow apps to bypass launch constraint protections.

2

How do I fix CVE-2025-43320?

To fix CVE-2025-43320, update your system to macOS Sequoia 15.7.3 or macOS Tahoe 26.

3

What systems are affected by CVE-2025-43320?

CVE-2025-43320 affects Apple macOS Sequoia versions prior to 15.7.3 and macOS Tahoe versions prior to 26.

4

What type of vulnerability is CVE-2025-43320?

CVE-2025-43320 is a vulnerability related to improper bounds checking and logic flaws in AppleJPEG and AppleMobileFileIntegrity.

5

Can CVE-2025-43320 be exploited remotely?

CVE-2025-43320 may allow local applications to exploit the vulnerability, but specific remote exploitation details are not disclosed.

Contact

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