CVE-2026-65334: Buffer Overflow

Published Aug 17, 2026
·
Updated

A memory corruption issue was addressed with improved state management. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Other sources

Accessibility. This issue was addressed through improved state management.

— Apple

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

— Apple

APFS. The issue was addressed with improved memory handling.

— Apple

App Store. This issue was addressed with improved checks.

— Apple

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

— Apple

Credit

Meta Red Team X - Nik Tsytsarkin, Geonha Lee@@leegn4a, f00l@@PPPF00L, 3ndy1@@_3ndy1, Minghao Lin@@Y1nkoc, 云散花折, Arjanit Isufi, Drinor Selmanaj (Sentry), Surya Narayan Kushwaha, an anonymous researcher, Bhaswanth Chigurupati(STAR Labs SG Pte), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Bedran Karakoc(Ruhr University Bochum), Tobias Funke(Ruhr University Bochum), Jacopo Clark(Ruhr University Bochum), Katharina Kohls(Ruhr University Bochum), Janggoon Lee(Out of Bounds), OpenAI Codex Security - Amy Burnett, wwwlk, Henock Habte, Seonwook Kim, Shubham Chaskar, lattice, Josef Korbel, Thomas Guillem, Niels Hofmans, Claudio Bozzato(Cisco Talos), Francesco Benvenuto(Cisco Talos), Josef Korbel (Citadelo), Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), Dung Do@@_piers2(Calif), 杉山 壮太, Mohit Negi, Shubham Chaskar(Braze Security Team), Tommy DeVoss@@thedawgyg(Braze Security Team), Jorge Welch@@jorgwelch, Arash Ale Ebrahim(SCy), Narendra Singh@@_3P1C, Peter Malone, Rahul Raj, Nicolas Rabrenovic, Irvin Wang, Seonung Park, ALTV!ST (altvi.st/), Franco Belman at Blackwing Intelligence, Dun, YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Daniel Febrero, Daniel Williams, Arni Hardarson (Neonix Security), Anonymous(TrendAI Zero Day Initiative), ret2happy, Mathis Mansière, James Duffy@@0x4A616D657344, CVE-2026-3784, CVE-2026-3783, Huỳnh Tấn Ngàn, Manuel Fernandez (Stackhopper Security), Stanislav Jelezoglo(Positive Technologies), Ilya Andr (andrd3v)(Positive Technologies), Redon Gashi, Jonathan Alush-Aben, Arni Hardarson, Jiri Ha, Gandalf4a(PKU), Anton Pakhunov, Richard Zana, Dhiyanesh Selvaraj@@redroot97, Seiji Sakurai@@HeapSmasher, hxr1(STAR Labs SG Pte), Hiroki Imai (LAC Co.(STAR Labs SG Pte), Ltd.)(STAR Labs SG Pte), Ashish Kunwar, Ryan Hileman via Xint Code (xint.io), Ashish Kunwar(MurphySec), f0r(MurphySec), Mahmoud Abdelmoniem(ThreatBook), Feng Xue(ThreatBook), XGPT(ThreatBook), Wang Yu, Lyutoon, Hiroki Imai (LAC Co., Ltd.), Fábio Luís@@scanpt, DARKNAVY@@DarkNavyOrg, Gor Aleksanyan, Michal Kosiorek, Eddy Tsalolikhin, Asjid Kalam@@odinshell, impost0r (ret2plt), Hyunwoo Kim@@v4bel, Hyunwoo Kim@@v4bel(ThreatBook), Lukas Gerlach, 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), CVE-2026-4424, Robert Mindo, Nathaniel Oh@@calysteon, Daisuke Hatakeyama Research)@@SYZD, Richard Zana(Nosebeard Labs), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), Tristan Madani@@TristanInSec(Talence Security), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), wh0am1i, stratan@@5tratan, Francisco Knabe, Stanislav Jelezoglo, Alex Radocea, Do Young Park, Artem Dinaburg(Trail of Bits via Anthropic CVD), Cantina, dr3dd, Gurpreet Shergill(Calif), Gia Bui@@yabeow(Calif), Rhyru9, Merrick Hare, Kwak Kiyong, Song Nuri, Khai Tran, John Lussier, Gurpreet Shergill, Utkarsh Pal, Ignacio Sanmillan@@ulexec, Using GLM(Z), stratan@@5tratan(Almamater Technologies), Soyeon Park(DEVCORE Research Team), Amy Burnett(DEVCORE Research Team), Khai Tran(DEVCORE Research Team), sherkito(DEVCORE Research Team), Kota Toda(DEVCORE Research Team), HexRabbit@@h3xr4bb1t(DEVCORE Research Team), NiNi@@terrynini38514(DEVCORE Research Team), Brian Carpenter, Milad Nasr, Nicholas Carlini with Claude, Anthropic, Mateusz Krzywicki (iVerify.io), Josef Korbel (Citadelo)(Cisco Talos), Utkarsh Pal(Talence Security), Narendra Singh@@_3P1C(Calif), Josef Korbel (Citadelo)(Calif), Юлия Мерцалова, Luke Francis, Behzad Najjarpour Jabbari@@_G4ru_, Vitaly Simonovich, Muhamad Syaiful, Christian Meurer Xavier, Aaron Grattafiori - NVIDIA AI Red Team, Josef Korbel(Calif), Nan Wang@@eternalsakura13, CVE-2026-28979, Shaheen Fazim, Stuart Wallace

Affected Software

12 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 iOS<18.7.10
18.7.10
Apple iPadOS<18.7.10
18.7.10
Apple Safari<26.6.1
26.6.1
Apple Safari<26.6.1
Apple iPadOS<18.7.10
Apple iPadOS>=26.0<26.6.1
Apple iPhone OS<18.7.10
Apple iPhone OS>=26.0<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 18.7.10

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
Aug 18, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

Frequently Asked Questions

1

Which systems are identified as needing the update?

Devices running iOS or iPadOS versions earlier than 18.7.10 or 26.6.1, or macOS Tahoe earlier than 26.6.2, are the versions identified as needing this fix. The described impact is an unexpected Safari crash when processing maliciously crafted web content.

2

What is required for exploitation?

An attacker would need a user to process maliciously crafted web content. The CVSS vector indicates the issue is network-reachable, requires no privileges, and requires user interaction.

3

What remediation is identified?

Update affected iOS, iPadOS, and macOS Tahoe systems to the listed fixed versions. The provided data does not specify an alternative mitigation if updates cannot be installed immediately.

Company

Resources

Contact

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