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
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
Credit
Noah Gregory (wts.dev), Mickey Jin@@patch1t, Ryan Dowd@@_rdowd, Amy (amys.website), Anonymous(Trend Micro Zero Day Initiative), Yiğit Can YILMAZ@@yilmazcanyigit, Golden Helm Securities(Iru), Gergely Kalman@@gergely_kalman(Iru), Csaba Fitzl@@theevilbit(Iru), Gergely Kalman@@gergely_kalman, an anonymous researcher, Ron Elemans, Murray Mike, 이동하 (Lee Dong Ha)(SSA Lab), George Karchemsky@@gkarchemsky(Trend Micro Zero Day Initiative), Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan, Srikanth V. Krishnamurthy, Mathy Vanhoef, CVE-2025-59375, Ron Masas(BreakPoint), Chunyu Song(NorthSea), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), 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), Gongyu Ma@@Mezone0, LeminLimez, @@cloudlldb, Wang Yu(Cyberserval), Keisuke Hosoda, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Asaf Cohen, 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), Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Zhongquan Li@@Guluisacat, Bilal Siddiqui, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Michael Reeves@@IntegralPilot, 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), Zhongcheng Li(IES Red Team of ByteDance), Matej Moravec@@MacejkoMoravec, Shantanu Thakur, Jian Lee@@speedyfriend433, Ye Zhang@@VAR10CK(Baidu Security), Viktor Oreshkin, Nathaniel Oh@@calysteon, Hikerell (Loadshine Lab), 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
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
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.
- CVE-2026-20670
- CVE-2026-20624
- CVE-2026-20625
- CVE-2026-20660
- CVE-2025-43403
- CVE-2026-20611
- CVE-2026-20609
- CVE-2026-20617
- CVE-2026-20615
- CVE-2025-46283
- CVE-2026-20627
- CVE-2025-43417
- CVE-2026-20620
- CVE-2025-43338
- CVE-2026-20634
- CVE-2026-20675
- CVE-2026-20671
- CVE-2025-59375
- CVE-2026-20667
- CVE-2026-20673
- CVE-2026-20677
- CVE-2026-20651
- CVE-2026-20694
- CVE-2026-20616
- CVE-2025-43533
- CVE-2025-46300
- CVE-2025-46301
- CVE-2025-46302
- CVE-2025-46303
- CVE-2025-46304
- CVE-2025-46305
- CVE-2025-46310
- CVE-2026-20614
- CVE-2026-20628
- CVE-2025-46290
- CVE-2026-20653
- CVE-2026-20680
- CVE-2026-20612
- CVE-2026-20641
- CVE-2026-20606
- CVE-2026-20605
- CVE-2026-20621
- CVE-2025-43402
- CVE-2026-20602
- CVE-2026-20626
- CVE-2026-20622
- CVE-2026-20662
- CVE-2026-20619
- CVE-2025-43288
- CVE-2025-43208
- CVE-2025-43312
- CVE-2025-43321
- CVE-2025-43344
- CVE-2025-31268
- CVE-2025-43331
- CVE-2025-43317
- CVE-2025-43340
- CVE-2025-43337
- CVE-2025-43320
- CVE-2025-43285
- CVE-2025-43330
- CVE-2025-43346
- CVE-2025-43361
- CVE-2025-43451
- CVE-2025-43307
- CVE-2025-43354
- CVE-2025-43303
- CVE-2025-43357
- CVE-2025-43323
- CVE-2025-43349
- CVE-2025-43292
- CVE-2025-43372
- CVE-2025-24088
- CVE-2025-43305
- CVE-2025-43290
- CVE-2025-43289
- CVE-2025-46284
- CVE-2025-43316
- CVE-2025-31271
- CVE-2025-31270
- CVE-2025-43326
- CVE-2025-43283
- CVE-2025-46280
- CVE-2025-43325
- CVE-2025-43287
- CVE-2025-43302
- CVE-2025-31255
- CVE-2025-43366
- CVE-2025-43359
- CVE-2025-43345
- CVE-2025-43299
- CVE-2025-43295
- CVE-2025-43353
- CVE-2025-43294
- CVE-2025-43319
- CVE-2025-43315
- CVE-2025-43355
- CVE-2025-43207
- CVE-2025-43279
- CVE-2025-43301
- CVE-2025-43298
- CVE-2025-40909
- CVE-2025-43297
- CVE-2025-31269
- CVE-2025-43204
- CVE-2024-27280
- CVE-2025-46306
- CVE-2025-43327
- CVE-2025-43329
- CVE-2025-43328
- CVE-2025-43318
- CVE-2025-46307
- CVE-2025-31259
- CVE-2025-43332
- CVE-2025-43293
- CVE-2025-43291
- CVE-2025-43286
- CVE-2025-43369
- CVE-2025-43358
- CVE-2025-43367
- CVE-2025-43190
- CVE-2025-43333
- CVE-2025-24197
- CVE-2025-6965
- CVE-2025-43341
- CVE-2025-43314
- CVE-2025-43304
- CVE-2025-43306
- CVE-2025-43347
- CVE-2025-43296
- CVE-2025-43311
- CVE-2025-43308
- CVE-2025-43262
- CVE-2025-43356
- CVE-2025-43272
- CVE-2025-43343
- CVE-2025-43342
- CVE-2025-43419
- CVE-2025-43376
- CVE-2025-43368
- CVE-2025-43310
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.