CVE-2026-43653: Buffer Overflow

Published May 11, 2026
·
Updated

Accelerate. An out-of-bounds read was addressed with improved bounds checking.

Other sources

Accounts. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

Accounts. A permissions issue was addressed with additional restrictions.

— Apple

Accounts. An authorization issue was addressed with improved state management.

— Apple

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

— Apple

AirDrop. A reachable assertion was addressed with improved input validation.

— Apple

Credit

Dave G., Aswin Kumar Gokula Kannan, Csaba Fitzl@@theevilbit(Iru), Suresh Sundaram, Jiri Ha, Arni Hardarson, wdszzml, Atuin Automated Vulnerability Discovery Engine, Johnny Franks@@zeroxjf, Google Threat Analysis Group, Mihalis Haatainen, Ari Hawking, Ashish Kunwar, Vaagn Vardanian, Nathaniel Oh@@calysteon, Yiğit Can YILMAZ@@yilmazcanyigit, Robert Tran(STAR Labs SG Pte), popku1337(STAR Labs SG Pte), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Aswin kumar Gokulakannan, Calif.io in collaboration with Claude, Anthropic Research, beist, Ryan Hileman via Xint Code (xint.io), Tristan Madani@@TristanInSec(Talence Security), Chris Betz, Dhiyanesh Selvaraj@@redroot97, Atul R V, Anton Pakhunov, Ricardo Prado, Ian van der Wurff (ian.nl), Ilya Sc. Jowell A., Morris Richman@@morrisinlife, Andrei Dodu, Peter Malone, Doron Assness, Alex Radocea, Amy (amys.website), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), an anonymous researcher, Wang Yu, Brendon Tiszka(Google Project Zero), Arash Ale Ebrahim(SCy), Vamshi Paili, Tony Gorez for Reverse Society@@tonygo_, CVE-2026-1837, impost0r (ret2plt), Nicholas Soh, David Ige(Beryllium Security), Alan Wang, Ailsa Sun, Christopher W. Fletcher, Hovav Shacham, David Kohlbrenner, Riccardo Paccagnella, Niels Hofmans(TrendAI Zero Day Initiative), Anonymous(TrendAI Zero Day Initiative), Gandalf4a(PKU), Johnny Franks@@0xjohnny, Richard Zana, Somair Ansar, Robert Tran, Chris Betz(Talence Security), Ruslan Dautov, Zhongcheng Li (CK01), Omar Cerrito, Michael DePlante@@izobashi(TrendAI Zero Day Initiative), Asaf Cohen, Jorge Welch, Andy Koo@@andykoo(Hexens), Adriatik Raci, Cantina, Luke Francis, kwak kiyong / kakaogames, Vitaly Simonovich, Adel Bouachraoui, greenbynox, Do Young Park, Artem Dinaburg(Trail of Bits via Anthropic CVD), Yuhao Hu, Yuanming Lai, Chenggang Wu, Zhe Wang, Idan Masas(TrendAI Zero Day Initiative), DARKNAVY@@DarkNavyOrg(TrendAI Zero Day Initiative), Daniel Rhea, Luka Rački, wac(TrendAI Zero Day Initiative), Kookhwan Lee(TrendAI Zero Day Initiative), Mateusz Krzywicki (iVerify.io), Maher Azzouzi, Aisle offensive security research team (Joshua Rogers(Calif), Luigino Camastra(Calif), Igor Morgenstern(Calif), (Calif), Guido Vranken)(Calif), Maher Azzouzi(Calif), Ngan Nguyen(Calif), dr3dd, Milad Nasr, Nicholas Carlini with Claude, Anthropic, Khiem Tran, lebr0nli(National Yang Ming Chiao Tung University), Security, Systems Lab, Kenneth Hsu(Palo Alto Networks), Jérôme DJOUDER, Abhay Kailasia@@abhay_kailasia(Safran Mumbai India), Seiji Sakurai@@HeapSmasher, Rosyna Keller(Totally Not Malicious Software), Alvin Aries Tapia, XiguaSec, Ilya Andr (andrd3v)(RTU MIREA), Ilias Morad (A2nkF)(Voynich Group), Duy Trần@@khanhduytran0, @@hugeBlack, Guy Dor, Kun Peeks@@SwayZGl1tZyyy, Surya Kushwaha, Matej Moravec@@MacejkoMoravec, CVE-2025-14017, CVE-2025-14819, Prathamesh Walunj@@attahasa, Dan Raviv, Surya Kushwaha(Supernetworks), Robert Tran(Supernetworks), Peter Malone(Supernetworks), Dave G.(Supernetworks), Alex Radocea(Supernetworks), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), David Ige - Beryllium Security, Gia Bui@@yabeow(Calif), w0wbox, Adam Franke(CyStack), Trung Nguyen@@everping(CyStack), 이재영(Appknox), Vinay Kumar Rasala (Xplo8E)(Appknox), Stuart Wallace, Arni Hardarson (Neonix Security), Bartlomiej Dmitruk(striga), Stanislaw Strzalkowski(isec), Narendra Singh@@_3P1C, Rahul Raj, Pinak Oza, Robert Mindo, Vladislav Shevchenko (Positive Technologies), tamdao, Franco Belman at Blackwing Intelligence, Peter Malone(cyberplanet), Nicolas Rabrenovic(cyberplanet), Irvin Wang(cyberplanet), Rishabh Jain (rjcyber)(cyberplanet), lokerxx(Economics), Narendra Singh@@_3P1C(Economics), Lyutoon(Economics), Jordy Zomer@@pwningsystems(Economics), Richard Zana(Economics), George Stergiopoulos(Economics), InfoSec lab(Economics), Athens University(Economics), Business, Greece, Aswin Kumar Gokulakannan, 이재영, Pavan Nallamothu, Jared Reyes, John Lussier, Seonung Park, ALTV!ST (altvi.st/), Dun, Daniel Williams, Gergely Kalman@@gergely_kalman, ret2happy, Mathis Mansière, James Duffy@@0x4A616D657344, stratan@@5tratan, Matthew Schneider, Dallas Dubs(Nosebeard Labs), Aaron Grattafiori - NVIDIA AI Red Team(Nosebeard Labs), XBreach.ai(Nosebeard Labs), Yongyue WANG AKA Brian.W(OKX security), Roman Zabicki(Nosebeard Labs), Katika Mohaseen(Nosebeard Labs), an anonymous researcher(Nosebeard Labs), CVE-2026-3784, CVE-2026-3783, HvxyZLF, Lance Cain - Offensive Security Engineer, SpecterOps Inc., Jonathan Bar Or@@yo_yo_yo_jbo, Anthony Laou Hine Tsuei@@anarcheuz, Gil Portnoy & Henry, Ayaan Ahmad, Hyunwoo Kim@@v4bel, erdene-och Byambabayar, Niels Hofmans, Manuel Fernandez (Stackhopper Security), Stanislav Jelezoglo(Positive Technologies), Ilya Andr (andrd3v)(Positive Technologies), Redon Gashi, Nicolas Rabrenovic, Atul R V & Ashmit Sharma, Hcamael, 章鱼哥 （aipyaipy.com）@@aipy, Surya Narayan Kushwaha, Cem Onat Karagun, Alfredo Pesoli@@__rev(Bynar), Jonathan Alush-Aben, PETOWORKS의 Bugeun Choi@@Bugeun, Geonha Lee@@leegn4a, hxr1(STAR Labs SG Pte), Hiroki Imai (LAC Co.(STAR Labs SG Pte), Ltd.)(STAR Labs SG Pte), Igor Ushakov, Adam Doupé(ASU SEFCOM), Ashish Kunwar(MurphySec), f0r(MurphySec), Mahmoud Abdelmoniem(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Lyutoon, Hiroki Imai (LAC Co., Ltd.), Fábio Luís@@scanpt, DARKNAVY@@DarkNavyOrg, Gor Aleksanyan, Michal Kosiorek, Eddy Tsalolikhin, Asjid Kalam@@odinshell, Hyunwoo Kim@@v4bel(ThreatBook), Wang Yu(STAR Labs SG Pte), Ernesto Martínez García, Calif Research, Ji'an Zhou, Mingxuan Yang, Ye Zhang, Ye Zhang@@VAR10CK(Baidu Security), Vladislav Shevchenko (Positive Technologies)(STAR Labs SG Pte), Pasquale Scola(STAR Labs SG Pte), Lukas Gerlach, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), CVE-2026-4424, Daisuke Hatakeyama Research)@@SYZD, Richard Zana(Nosebeard Labs), wh0am1i, Mickey Jin@@patch1t, Koh M. Nakagawa@@tsunek0h(FFRI Security Inc), 九宫格(Chongqing Telecom), Chanwit Muenprakoddee (ChemIndy), Aethel-Systems, Narcis Oliveras Fontàs, Sindre Sorhus, Francisco Knabe, Zachary Neal(Stripe), Hcamael(Stripe), 章鱼哥 (aipyaipy.com)@@aipy(Stripe), JC Alvarado(Stripe), Jacob Hazak, @@pixiepointsec, Nik Tsytsarkin, Junming C.(Chapoly1305), Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, He Wei (ギカク)(Cisco Talos), Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Kitten Food, Tien-Chih Lin(CyCraft Technology), Bruce Dang(Calif)

Affected Software

15 affected componentsFixes available
Apple macOS Tahoe<26.5
26.5
Apple iOS<26.5
26.5
Apple iPadOS<26.5
26.5
Apple macOS Sonoma<14.8.7
14.8.7
Apple tvOS<26.5
26.5
Apple iOS<18.7.9
18.7.9
Apple iPadOS<18.7.9
18.7.9
Apple macOS Sequoia<15.7.8
15.7.8
Apple iPadOS<18.7.9
Apple iPadOS>=26.0<26.5
Apple iPhone OS<18.7.9
Apple iPhone OS>=26.0<26.5
Apple macOS>=14.0<14.8.7
Apple macOS>=26.0<26.5
Apple tvOS<26.5

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 14.8.7
  2. Upgrade

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

    Fixed in 26.5
  3. Upgrade

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

    Fixed in 18.7.9
  4. Upgrade

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

    Fixed in 15.7.8
  5. Upgrade

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

    Fixed in iOS 18.7.9
  6. Upgrade

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

    Fixed in iPadOS 18.7.9
  7. Upgrade

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

    Fixed in iOS 26.5
  8. Upgrade

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

    Fixed in iPadOS 26.5
  9. Upgrade

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

    Fixed in macOS Sequoia 15.7.8
  10. Upgrade

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

    Fixed in macOS Sonoma 14.8.7
  11. Upgrade

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

    Fixed in macOS Tahoe 26.5
  12. Upgrade

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

    Fixed in tvOS 26.5

Event History

May 11, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Description
Updated
via Apple·12:00 AM
Affected Software
CVE Published
via MITRE·08:08 PM
Data Sourced
via MITRE·08:08 PM
DescriptionWeakness
Data Sourced
via NVD·09:19 PM
DescriptionSeverityWeaknessAffected Software
Jul 27, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
WeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected 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-2026-43653?

CVE-2026-43653 has not been assigned a severity score, but it addresses multiple critical issues including out-of-bounds reads and buffer overflows.

2

How do I fix CVE-2026-43653?

To fix CVE-2026-43653, update your affected Apple products to version 26.5 or later.

3

Which Apple products are affected by CVE-2026-43653?

CVE-2026-43653 affects Apple macOS Tahoe, iOS, iPadOS, and tvOS up to version 26.5, as well as macOS Sonoma up to version 14.8.7.

4

What types of vulnerabilities are addressed in CVE-2026-43653?

CVE-2026-43653 addresses an out-of-bounds read, buffer overflow, permissions issues, and authorization issues.

5

Is there a specific version I must upgrade to for CVE-2026-43653?

Yes, you must upgrade to version 26.5 or later for iOS, iPadOS, and macOS Tahoe to mitigate CVE-2026-43653.

Company

Resources

Contact

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