CVE-2026-64788: Use After Free

Published Aug 17, 2026
·
Updated

Accelerate Framework. An out-of-bounds write issue was addressed with improved bounds checking.

Other sources

Accessibility. This issue was addressed with improved data protection.

— Apple

APFS. An out-of-bounds write issue was addressed with improved bounds checking.

— Apple

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

— Apple

Apple Account. An authentication issue was addressed with improved state management.

— Apple

Apple Account. An information disclosure issue was addressed with improved state management.

— Apple

Credit

Peter Malone, Stuart Wallace(Totally Not Malicious Software), Ilya Andr (andrd3v)(Totally Not Malicious Software), Rosyna Keller(Totally Not Malicious Software), CJ Vana, David Strnadel, Daniel Febrero, Asaf Cohen, Gongyu Ma@@Mezone0, Jian Lee@@speedyfriend433, Cem Onat Karagun, an anonymous researcher, Zhongcheng Li (CK01), Prashan Samarathunge, Franco Belman at Blackwing Intelligence, Mustafa Calap@@ordinal0, dbg.re), Meta Red Team X - Nik Tsytsarkin, Zhongcheng Li(IES Red Team), Calif.io in collaboration with Claude, Anthropic Research, Ruslan Dautov, CVE-2026-65414, Stanislav Jelezoglo, Heiner Gerdes, Rishabh Jain (rjcyber)(cyberplanet), Pasquale Scola, Dawuge(Shuffle Team), Chris Bailey - Short Circuit, Stuart Wallace, Pavan Nallamothu, ret2happy, Meta Product Security, stratan@@5tratan, Rahul Raj, N.M.Praveen Nawarathne@@zblockrat, James Gill @infosec.exchange)@@jjtech, Nik Tsytsarkin, Bruce Dang(Calif), Tommy DeVoss@@thedawgyg(Braze Security Team), Jiyong Yang, Vishal Patidar, Roman Zabicki, Justin O'Leary, Geonha Lee@@leegn4a, f00l@@PPPF00L, 3ndy1@@_3ndy1, Minghao Lin@@Y1nkoc, 云散花折, Arjanit Isufi, Mihalis Haatainen, Ashish Kunwar, Ari Hawking, 이재영, hxr1, Seiji Sakurai@@HeapSmasher, genter0(Calif), Svetoslav Stolarov & Aisa Fox(Calif), Josh Maine(Calif), Dun, Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Ryan Hileman via Xint Code (xint.io), Drinor Selmanaj (Sentry), Surya Narayan Kushwaha, Bhaswanth Chigurupati, Tristan Madani@@TristanInSec(Talence Security), Ye Zhang@@VAR10CK(Baidu Security), Hiroki Imai (LAC Co., Ltd.), R4mbb(KRsecurity), Vladislav Shevchenko (Positive Technologies), Fábio Luís@@scanpt(STAR Labs SG Pte), Richard Zana(STAR Labs SG Pte), Ashish Kunwar(Positive Technologies), Mikhail Lozhnikov(Positive Technologies), Bhaswanth Chigurupati(STAR Labs SG Pte), Kitten Food, Myeonghun Pak, Nathaniel Oh@@calysteon, Alan Banderas@@creeper4004, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Sindre Sorhus(IES Red Team), Hoffcona(IES Red Team), Issa Sancho, Ilya Andr (andrd3v)(Positive Technologies), Dhiyanesh Selvaraj@@redroot97, Narendra Singh@@_3P1C, John Lussier, Filip Olszak, Owen Pawling@@owenpawling, Gongyu Ma (twitter@@Mezone0, YingMuo@@YingMuo(DEVCORE Research Team), Sindre Sorhus, Constantin Clerc(Calif), Shad J(Calif), huami1314@@huamidev(Calif), Huy Nguyen@@34306(Calif), Zeyang Li&Yuxiang Wang(Chongqing Telecom), Souta Sugiyama, Henock Habte, Viggo Lekdorf, Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), 杉山 壮太, Shubham Chaskar, Dung Do@@_piers2(Calif), Mohit Negi, Myungyong Lee, Kwak Kiyong@@Pwnkai23, Song Nuri, Dem0ns (@天府简易信工作室), Abdelhak Kherroubi, Jasminder Pal Singh, Lehan Dilusha Jayasingha (Sri Lanka), Ilya Andr (andrd3v), Siyeong kim, AL Najafi, tamdao, Junyeong Lee (jylab.github.io), Merrick Hare, Aditya Kumar, John Nzyuko Uvyu, Geoffrey Lovelace, Mateusz Jurczyk(Google Project Zero), Varik Matevosyan, Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Morris Richman@@morrisinlife, Tristan Brennan, Rodolphe Brunetti@@eisw0lf(Lupus Nova), Yiğit Can YILMAZ@@yilmazcanyigit, Hongsik Kim (mnur), Lehan Dilusha Jayasingha, Janggoon Lee(Out of Bounds), OpenAI Codex Security - Amy Burnett, wwwlk, Charles Kern, Seonwook Kim, lattice, Josef Korbel, Thomas Guillem, Niels Hofmans, Josef Korbel (Citadelo), Kun Peeks@@SwayZGl1tZyyy, Tomi Garcia (archyxsec), OGINOME Tomohito, Xint Code, Talal Haj Bakry(Mysk Inc), Tommy Mysk@@mysk_co(Mysk Inc), Shubham Chaskar(Braze Security Team), Bedran Karakoc(Ruhr University Bochum), Tobias Funke(Ruhr University Bochum), Jacopo Clark(Ruhr University Bochum), Katharina Kohls(Ruhr University Bochum)

Affected Software

8 affected componentsFixes available
Apple iOS<26.6.1
26.6.1
Apple iPadOS<26.6.1
26.6.1
Apple macOS Tahoe<26.6.2
26.6.2
Apple WatchOS<27
27
Apple visionOS<27
27
Apple iPadOS<26.6.1
Apple iPhone OS<26.6.1
Apple macOS>=26.0<26.6.2

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 26.6.1
  2. Upgrade

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

    Fixed in 26.6.2
  3. Upgrade

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

    Fixed in 27

Event History

Aug 17, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
CVE Published
via MITRE·09:30 PM
Data Sourced
via MITRE·09:30 PM
DescriptionWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeaknessAffected Software
Sep 14, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected 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-2026-64788?

CVE-2026-64788 has a severity rating that indicates it poses a significant risk to affected systems due to multiple logic and memory handling issues.

2

How do I fix CVE-2026-64788?

To fix CVE-2026-64788, ensure that your Apple iOS, iPadOS, or macOS is updated to the latest version provided by Apple.

3

What systems are affected by CVE-2026-64788?

CVE-2026-64788 affects Apple iOS, Apple iPadOS, and Apple macOS Tahoe.

4

What types of issues does CVE-2026-64788 address?

CVE-2026-64788 addresses a logic issue, an integer overflow, and memory handling improvements.

5

When was CVE-2026-64788 published?

CVE-2026-64788 was published on August 17, 2026.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203