CVE-2026-28840: Buffer Overflow

Published Mar 24, 2026
·
Updated

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

Other sources

A permissions issue was addressed with additional restrictions. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.4. An app may be able to gain root privileges.

— NVD

Accessibility. This issue was addressed through improved state management.

— Apple

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

— Apple

Admin Framework. A path handling issue was addressed with improved validation.

— Apple

apache. This is a vulnerability in open source code and Apple Software is among the affected projects. The CVE-ID was assigned by a third party. Learn more about the issue and CVE-ID at cve.org.

— 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), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), Peter Malone(Supernetworks), Dave G.(Supernetworks), Alex Radocea(Supernetworks), Andy Koo@@andykoo(Hexens), Rosyna Keller(Totally Not Malicious Software), Ryan Dowd@@_rdowd, CVE-2025-55753, CVE-2025-58098, CVE-2025-59775, CVE-2025-65082, CVE-2025-66200, Mickey Jin@@patch1t, Koh M. Nakagawa@@tsunek0h(FFRI Security Inc), Talal Haj Bakry(Mysk Inc), Tommy Mysk@@mysk_co(Mysk Inc), Zhongquan Li@@Guluisacat, Justin Cohen(Google), Jex Amro, Cristian Dinca (icmd.tech), Hossein Lotfi@@hosselot(TrendAI Zero Day Initiative), Mustafa Calap@@ordinal0, dbg.re), Etienne Charron (Renault), Victoria Martini (Renault), Zhongcheng Li(IES Red Team), Asaf Cohen, CVE-2025-14524, 风沐云烟@@binary_fmyy, Minghao Lin@@Y1nKoc, Jonathan Bar Or@@yo_yo_yo_jbo, DARKNAVY@@DarkNavyOrg, XiguaSec, Ye Zhang(Baidu Security), Ryan Dowd@@_rdowd(Iru), CVE-2025-64505, Joseph Ravichandran@@0xjprx(MIT CSAIL), Gor Aleksanyan(BoB 0xB6), Dhiyanesh Selvaraj@@redroot97(BoB 0xB6), 이동하 (Lee Dong Ha(BoB 0xB6), Jian Lee@@speedyfriend433, hari shanmugam, Johnny Franks@@0xjohnny, Yuebin Sun@@yuebinsun2020(SecuRing), an anonymous researcher(SecuRing), Nathaniel Oh@@calysteon(SecuRing), Kirin@@Pwnrin(SecuRing), Wojciech Regula(SecuRing), Joshua Jewett@@JoshJewett33, Ilya Andr (andrd3v)(RTU MIREA), Ilias Morad (A2nkF)(Voynich Group), Duy Trần@@khanhduytran0, @@hugeBlack, Himanshu Bharti@@Xpl0itme(Khatima), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Matej Moravec@@MacejkoMoravec, Dawuge(Shuffle Team), Hunan University, Gergely Kalman@@gergely_kalman, Kun Peeks@@SwayZGl1tZyyy, Gyujeong Jin at Team.0xb6@@G1uN4sh, Christian Kohlschütter, Sreejith Krishnan R, @@pixiepointsec, Luke Roberts@@rookuu, Pedro Tôrres@@t0rr3sp3dr0, 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, Hongze Wu(Ant Group Infrastructure Security Team), Shuaike Dong(Ant Group Infrastructure Security Team), greenbynox, Gongyu Ma@@Mezone0, Héloïse Gollier, Mathy Vanhoef (KU Leuven), impost0r (ret2plt), Nicholas Soh, David Ige(Beryllium Security), Surya Kushwaha, Surya Kushwaha(Supernetworks), Robert Tran(Supernetworks), Jorge Welch@@jorgwelch

Affected Software

6 affected componentsFixes available
Apple macOS Sonoma<14.8.7
14.8.7
Apple macOS Sequoia<15.7.7
15.7.7
Apple macOS>=14.0<14.8.7
Apple macOS>=15.0<15.7.7
Apple macOS>=26.0<26.4
Apple macOS Tahoe<26.4
26.4

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 15.7.7
  3. Upgrade

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

    Fixed in 26.4
  4. Compensating control

    If the affected issue relates to a file quarantine bypass or permissions/sandboxing weaknesses, apply the described compensating mitigation by using additional sandbox restrictions and extra checks where applicable, as the issue is described as being fixed via additional quarantine checks and sandbox restrictions.

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
May 11, 2026
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected 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.

Frequently Asked Questions

1

What is the severity of CVE-2026-28840?

The severity of CVE-2026-28840 is high with a CVSS score of 7.8.

2

How do I fix CVE-2026-28840?

To fix CVE-2026-28840, update to macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, or macOS Tahoe 26.4.

3

What type of issue is CVE-2026-28840 associated with?

CVE-2026-28840 is associated with an authentication issue and permissions issue in 802.1X.

4

What systems are affected by CVE-2026-28840?

CVE-2026-28840 affects Apple macOS, specifically macOS Sequoia, macOS Sonoma, and macOS Tahoe.

5

What are the potential impacts of CVE-2026-28840?

The potential impacts of CVE-2026-28840 include an app possibly gaining root privileges.

Company

Resources

Contact

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