CVE-2026-28994: Buffer Overflow

Published May 11, 2026
·
Updated

A use after free issue was addressed with improved memory management. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, watchOS 26.5. An attacker in a privileged network position may be able to perform denial-of-service attack using crafted Wi-Fi packets.

Other sources

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

— Apple

Accounts. A permissions issue was addressed with additional restrictions.

— Apple

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

— Apple

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

— Apple

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

— Apple

Credit

Vaagn Vardanian, Nathaniel Oh@@calysteon, beist, Yiğit Can YILMAZ@@yilmazcanyigit, popku1337(STAR Labs SG Pte), Billy Jheng Bing Jhong(STAR Labs SG Pte), Pan Zhenpeng@@Peterpan0927(STAR Labs SG Pte), Robert Tran, Aswin kumar Gokulakannan, Calif.io in collaboration with Claude, Anthropic Research, Csaba Fitzl@@theevilbit(Iru), Ryan Hileman via Xint Code (xint.io), Chris Betz(Talence Security), Tristan Madani@@TristanInSec(Talence Security), Dhiyanesh Selvaraj@@redroot97, Ruslan Dautov, Atul R V, Omar Cerrito, Anton Pakhunov, Ricardo Prado, Ian van der Wurff (ian.nl), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), Dan Raviv, Ilya Sc. Jowell A., Peter Malone, Asaf Cohen, Doron Assness, Peter Malone(Supernetworks), Dave G.(Supernetworks), Alex Radocea(Supernetworks), Pan ZhenPeng@@Peterpan0927(STAR Labs SG Pte), Andy Koo@@andykoo(Hexens), Alex Radocea, Amy (amys.website), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), an anonymous researcher, David Ige - Beryllium Security, Cantina, Luke Francis, kwak kiyong / kakaogames, Vitaly Simonovich, Adel Bouachraoui, greenbynox, Do Young Park, Yuhao Hu, Yuanming Lai, Chenggang Wu, Zhe Wang, DARKNAVY@@DarkNavyOrg(TrendAI Zero Day Initiative), Anonymous(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, Gia Bui@@yabeow(Calif), w0wbox, Milad Nasr, Nicholas Carlini with Claude, Anthropic, Khiem Tran, Kenneth Hsu(Palo Alto Networks), Jérôme DJOUDER, Wang Yu, Brendon Tiszka(Google Project Zero), Jorge Welch, Adriatik Raci, Abhay Kailasia@@abhay_kailasia(Safran Mumbai India), Dave G., impost0r (ret2plt), David Ige(Beryllium Security), Arni Hardarson, Kun Peeks@@SwayZGl1tZyyy, Aswin Kumar Gokula Kannan, Suresh Sundaram, Jiri Ha, wdszzml, Atuin Automated Vulnerability Discovery Engine, Johnny Franks@@zeroxjf, Google Threat Analysis Group, Mihalis Haatainen, Ari Hawking, Ashish Kunwar, Robert Tran(STAR Labs SG Pte), Chris Betz, Morris Richman@@morrisinlife, Andrei Dodu, Zhongcheng Li(IES Red Team), Rosyna Keller(Totally Not Malicious Software), Vamshi Paili, Tony Gorez for Reverse Society@@tonygo_, Alvin Aries Tapia, XiguaSec, Ilya Andr (andrd3v)(Voynich Group), Ilias Morad (A2nkF)(Voynich Group), Duy Trần@@khanhduytran0, @@hugeBlack, Guy Dor, Daniel Rhea(TrendAI Zero Day Initiative), CVE-2026-1837, Alan Wang, Christopher W. Fletcher, Hovav Shacham, David Kohlbrenner, Riccardo Paccagnella, Niels Hofmans(TrendAI Zero Day Initiative), Somair Ansar, Seiji Sakurai@@HeapSmasher

Affected Software

18 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 macOS Sequoia<15.7.7
15.7.7
Apple tvOS<26.5
26.5
Apple WatchOS<26.5
26.5
Apple iOS<18.7.9
18.7.9
Apple iPadOS<18.7.9
18.7.9
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>=15.0<15.7.7
Apple macOS>=26.0<26.5
Apple tvOS<26.5
Apple WatchOS<26.5

Event History

May 11, 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·08:08 PM
Data Sourced
via MITRE·08:08 PM
DescriptionWeakness
Data Sourced
via NVD·09:18 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Peer vulnerabilities

Found alongside the following vulnerabilities.

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Frequently Asked Questions

1

What is the severity of CVE-2026-28994?

CVE-2026-28994 is classified as a critical severity vulnerability due to its potential exploitation in a privileged network situation.

2

How do I fix CVE-2026-28994?

To fix CVE-2026-28994, upgrade to the latest versions of affected Apple products, specifically to iOS 18.7.9, iPadOS 18.7.9, macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5, tvOS 26.5, or watchOS 26.5.

3

What systems are affected by CVE-2026-28994?

CVE-2026-28994 affects multiple Apple products including iOS, iPadOS, macOS Sequoia, macOS Sonoma, macOS Tahoe, tvOS, and watchOS versions prior to the specified fixes.

4

What type of vulnerability is CVE-2026-28994?

CVE-2026-28994 is a use after free vulnerability that relates to memory management issues, allowing potential attackers to execute arbitrary code.

5

Is my device safe from CVE-2026-28994 if it is updated?

Yes, devices that have been updated to the fixed versions are safe from CVE-2026-28994.

Company

Resources

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