CVE-2026-28858: Input Validation

Q: What is the severity of CVE-2026-28858?

CVE-2026-28858 is considered a critical vulnerability due to its capability to cause unexpected system termination and potential kernel memory corruption.

Q: How do I fix CVE-2026-28858?

To address CVE-2026-28858, update your iOS or iPadOS to version 26.4 or later.

Q: Which devices are affected by CVE-2026-28858?

CVE-2026-28858 affects Apple devices running iOS and iPadOS versions prior to 26.4.

Q: What type of vulnerability is CVE-2026-28858?

CVE-2026-28858 is an authentication vulnerability with issues related to buffer overflow and state management.

Q: Can CVE-2026-28858 be exploited remotely?

Yes, CVE-2026-28858 can potentially be exploited remotely, allowing an attacker to disrupt system operations.

Published Mar 24, 2026

Updated

802.1X. An authentication issue was addressed with improved state management.

Other sources

A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.4 and iPadOS 26.4. A remote user may be able to cause unexpected system termination or corrupt kernel memory.

— NVD

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

— Apple

App Protection. The issue was addressed with improved checks.

— Apple

Audio. A type confusion issue was addressed with improved memory handling.

— Apple

Audio. A use-after-free issue was addressed with improved memory management.

— Apple

Credit

Tuan D. Hoang, Hazem Issa, Yongdae Kim @ KAIST SysSec Lab, Alvin Aries Tapia, an anonymous researcher, Cristian Dinca (icmd.tech), Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), Etienne Charron (Renault), Victoria Martini (Renault), Zhongcheng Li(IES Red Team), CVE-2025-14524, Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), XiguaSec, CVE-2025-64505, Gor Aleksanyan(BoB 0xB6), Dhiyanesh Selvaraj@@redroot97(BoB 0xB6), 이동하 (Lee Dong Ha(BoB 0xB6), Jian Lee@@speedyfriend433, DARKNAVY@@DarkNavyOrg, Johnny Franks@@zeroxjf, Ilya Andr (andrd3v)(Voynich Group), Ilias Morad (A2nkF)(Voynich Group), Duy Trần@@khanhduytran0, @@hugeBlack, Himanshu Bharti@@Xpl0itme(Khatima), wdszzml, Atuin Automated Vulnerability Discovery Engine, Guy Dor, Gongyu Ma@@Mezone0, Alex Radocea, Yongdae Kim @ SysSec, KAIST, Caspian Tarafdar, Andrew Becker, webb, Thomas Espach, @@hamayanhamayan, Yeonghyeon Choi, Daniel Rhea, Söhnke Benedikt Fischedick (Tripton), Emrovsky & Switch3301, Yevhen Pervushyn, Minse Kim, Narcis Oliveras Fontàs, Nathaniel Oh@@calysteon, Hongze Wu(Ant Group Infrastructure Security Team), Shuaike Dong(Ant Group Infrastructure Security Team), greenbynox, Arni Hardarson, Héloïse Gollier, Mathy Vanhoef (KU Leuven), Rosyna Keller(Totally Not Malicious Software), Adrián Pérez Martínez, Uluk Abylbekov, Zack Tickman, Justin Cohen(Google), Jex Amro

Affected Software

4 affected componentsFixes available

Apple iOS<26.4

26.4

Apple iPadOS<26.4

26.4

Apple iPadOS<26.4

Apple iPhone OS<26.4

Event History

Mar 24, 2026

Data Sourced

via Apple·12:00 AM

DescriptionWeaknessAffected Software

Updated

via Apple·12:00 AM

DescriptionWeakness

Updated

via Apple·12:00 AM

Description

Mar 25, 2026

CVE Published

via MITRE·12:32 AM

Data Sourced

via MITRE·12:32 AM

DescriptionWeakness

Data Sourced

via NVD·01:17 AM

DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

APPLE-126792

Frequently Asked Questions

What is the severity of CVE-2026-28858?

CVE-2026-28858 is considered a critical vulnerability due to its capability to cause unexpected system termination and potential kernel memory corruption.

How do I fix CVE-2026-28858?

To address CVE-2026-28858, update your iOS or iPadOS to version 26.4 or later.

Which devices are affected by CVE-2026-28858?

CVE-2026-28858 affects Apple devices running iOS and iPadOS versions prior to 26.4.

What type of vulnerability is CVE-2026-28858?

CVE-2026-28858 is an authentication vulnerability with issues related to buffer overflow and state management.

Can CVE-2026-28858 be exploited remotely?

Yes, CVE-2026-28858 can potentially be exploited remotely, allowing an attacker to disrupt system operations.

CVE-2026-28858: Input Validation

Other sources

Credit

Affected Software

Event History

Parent advisories

Peer vulnerabilities

Don't miss critical vulnerabilities

Frequently Asked Questions

What is the severity of CVE-2026-28858?

How do I fix CVE-2026-28858?

Which devices are affected by CVE-2026-28858?

What type of vulnerability is CVE-2026-28858?

Can CVE-2026-28858 be exploited remotely?

Company

Resources

Contact