CVE-2025-43403: 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

An authorization issue was addressed with improved state management. This issue is fixed in macOS Sequoia 15.7.4, macOS Sonoma 14.8.4, macOS Tahoe 26. An app may be able to access sensitive user data.

— MITRE

App Intents. A logic issue was addressed with improved restrictions.

— 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

Credit

Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), Csaba Fitzl@@theevilbit(Kandji), Kirin@@Pwnrin, ABC Research s.r.o., Mickey Jin@@patch1t, an anonymous researcher, Nolan Astrein(Kandji), Mickey Jin@@patch1t(Cisco Talos), Kirin@@Pwnrin(Cisco Talos), Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Zhongquan Li@@Guluisacat, Bilal Siddiqui, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Michael Reeves@@IntegralPilot, Noah Gregory (wts.dev), Dawuge(Shuffle Team), Rosyna Keller(Totally Not Malicious Software), 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, Gergely Kalman@@gergely_kalman, 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), Ryan Dowd@@_rdowd, Csaba Fitzl@@theevilbit(Iru), Golden Helm Securities(Iru), Gergely Kalman@@gergely_kalman(Iru), Ron Elemans, Murray Mike, George Karchemsky@@gkarchemsky(Trend Micro Zero Day Initiative), Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan, Srikanth V. Krishnamurthy, Mathy Vanhoef, Kenneth Chew, CVE-2025-59375, Ron Masas(BreakPoint), Google Threat Analysis Group, Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), Xiaolong Bai(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Enis Maholli (enismaholli.com), CVE-2026-20622, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Gongyu Ma@@Mezone0, Asaf Cohen, LeminLimez, @@cloudlldb, Vamshi Paili, Tony Gorez for Reverse Society@@tonygo_, Amy (amys.website), Chunyu Song(NorthSea), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative)

Affected Software

5 affected componentsFixes available
Apple macOS Sonoma<14.8.4
14.8.4
Apple macOS Sequoia<15.7.4
15.7.4
Apple macOS<14.8.4
Apple macOS>=15.0<15.7.4
Apple macOS Tahoe<26
26

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 26
  2. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 15.7.4
  3. Upgrade

    Upgrade to a fixed release to a version that resolves this vulnerability.

    Fixed in 14.8.4

Event History

Sep 15, 2025
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Feb 11, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
CVE Published
via MITRE·10:58 PM
Data Sourced
via MITRE·10:58 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

What is the severity of CVE-2025-43403?

CVE-2025-43403 is considered to have a high severity due to the potential exposure of sensitive user data.

2

How do I fix CVE-2025-43403?

To fix CVE-2025-43403, update to macOS Sequoia version 15.7.4 or macOS Sonoma version 14.8.4.

3

What types of issues does CVE-2025-43403 address?

CVE-2025-43403 addresses authorization issues related to state management and directory path parsing.

4

Which affected software versions are impacted by CVE-2025-43403?

CVE-2025-43403 affects macOS Sequoia versions prior to 15.7.4 and macOS Sonoma versions prior to 14.8.4.

5

Can CVE-2025-43403 allow unauthorized data access?

Yes, CVE-2025-43403 can potentially allow unauthorized apps to access sensitive user data.

Company

Resources

Contact

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