CVE-2026-28870: Use After Free
Published Mar 24, 2026
·Updated
802.1X. An authentication issue was addressed with improved state management.
Other sources
Accounts. An authorization issue was addressed with improved state management.
— Apple
Admin Framework. A path handling issue was addressed with improved validation.
— Apple
An information leakage was addressed with additional validation. This issue is fixed in iOS 18.7.9 and iPadOS 18.7.9, iOS 26.4 and iPadOS 26.4, macOS Tahoe 26.4, tvOS 26.4, visionOS 26.4, watchOS 26.4. An app may be able to access sensitive user data.
— NVD
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
APFS. A buffer overflow was addressed with improved bounds checking.
— Apple
Credit
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, an anonymous researcher, 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), YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Mustafa Calap@@ordinal0, dbg.re), Etienne Charron (Renault), Victoria Martini (Renault), Zhongcheng Li(IES Red Team), Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), 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), Csaba Fitzl@@theevilbit(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, Andrei Dodu, Morris Richman@@morrisinlife, Kun Peeks@@SwayZGl1tZyyy, Dave G., Gyujeong Jin at Team.0xb6@@G1uN4sh, wdszzml, Atuin Automated Vulnerability Discovery Engine, Alex Radocea, 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, Nathaniel Oh@@calysteon, Hongze Wu(Ant Group Infrastructure Security Team), Shuaike Dong(Ant Group Infrastructure Security Team), greenbynox, Arni Hardarson, Gongyu Ma@@Mezone0, Héloïse Gollier, Mathy Vanhoef (KU Leuven), Guy Dor, Hazem Issa, Yongdae Kim @ SysSec, KAIST, Tuan D. Hoang, Yongdae Kim @ KAIST SysSec Lab, Alvin Aries Tapia, Adrián Pérez Martínez, Uluk Abylbekov, Zack Tickman, Dalibor Milanovic, Vamshi Paili, Tony Gorez for Reverse Society@@tonygo_, David Ige(Beryllium Security), Suresh Sundaram, Google Threat Analysis Group, Mihalis Haatainen, Ari Hawking, Ashish Kunwar, Vaagn Vardanian, 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, Ryan Hileman via Xint Code (xint.io), Tristan Madani@@TristanInSec(Talence Security), Chris Betz, Dhiyanesh Selvaraj@@redroot97, Ruslan Dautov, Atul R V, Ricardo Prado, Anton Pakhunov, Ian van der Wurff (ian.nl), Michael DePlante@@izobashi(TrendAI Zero Day Initiative), Ilya Sc. Jowell A., Peter Malone, Doron Assness, Adriatik Raci, Cantina, Idan Masas(TrendAI Zero Day Initiative), DARKNAVY@@DarkNavyOrg(TrendAI Zero Day Initiative), Anonymous(TrendAI Zero Day Initiative), Luka Rački, Mateusz Krzywicki (iVerify.io), wac(TrendAI Zero Day Initiative), Kookhwan Lee(TrendAI Zero Day Initiative), Maher Azzouzi, Vitaly Simonovich, Luke Francis, kwak kiyong / kakaogames, Adel Bouachraoui, lebr0nli(National Yang Ming Chiao Tung University), Security, Systems Lab, Wang Yu, Brendon Tiszka(Google Project Zero)
Affected Software
14 affected componentsFixes available
Apple tvOS<26.4
26.4
Apple macOS Tahoe<26.4
26.4
Apple WatchOS<26.4
26.4
Apple visionOS<26.4
26.4
Apple iPadOS<26.4
Apple iPhone OS<26.4
Apple macOS<26.4
Apple tvOS<26.4
Apple visionOS<26.4
Apple WatchOS<26.4
Apple iOS<26.4
26.4
Apple iPadOS<26.4
26.4
Apple iOS<18.7.9
18.7.9
Apple iPadOS<18.7.9
18.7.9
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 18.7.9 - Upgrade
Upgrade to a fixed release to a version that resolves this vulnerability.
Fixed in 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
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Mar 25, 2026
CVE Published
via MITRE·12:31 AM
Data Sourced
via MITRE·12:31 AM
DescriptionWeakness
Data Sourced
via NVD·01:17 AM
DescriptionSeverityAffected Software
May 11, 2026
Updated
via Apple·12:00 AM
Affected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Parent advisories
This vulnerability appears in the following advisories.
Peer vulnerabilities
Found alongside the following vulnerabilities.
- CVE-2026-28865
- CVE-2026-28877
- CVE-2026-28823
- CVE-2025-55753
- CVE-2025-58098
- CVE-2025-59775
- CVE-2025-65082
- CVE-2025-66200
- CVE-2026-28824
- CVE-2026-20696
- CVE-2026-20699
- CVE-2026-20684
- CVE-2026-20633
- CVE-2026-28910
- CVE-2026-28879
- CVE-2026-28822
- CVE-2026-28894
- CVE-2026-28866
- CVE-2026-20690
- CVE-2026-28821
- CVE-2026-28838
- CVE-2026-20679
- CVE-2026-28886
- CVE-2026-28878
- CVE-2026-28888
- CVE-2026-28893
- CVE-2025-14524
- CVE-2026-28876
- CVE-2026-28892
- CVE-2026-28926
- CVE-2026-28832
- CVE-2026-28870
- CVE-2026-28834
- CVE-2026-28881
- CVE-2026-28880
- CVE-2026-28833
- CVE-2025-64505
- CVE-2026-28842
- CVE-2026-28841
- CVE-2026-28868
- CVE-2026-28867
- CVE-2026-20698
- CVE-2026-20695
- CVE-2026-20687
- CVE-2026-28845
- CVE-2026-28882
- CVE-2026-20607
- CVE-2026-20692
- CVE-2026-20694
- CVE-2026-20632
- CVE-2026-28839
- CVE-2026-20701
- CVE-2026-28891
- CVE-2026-28827
- CVE-2026-28816
- CVE-2026-28826
- CVE-2026-20631
- CVE-2026-20693
- CVE-2026-28840
- CVE-2026-28862
- CVE-2026-28896
- CVE-2026-28831
- CVE-2026-28817
- CVE-2026-20688
- CVE-2026-28864
- CVE-2026-28830
- CVE-2026-28860
- CVE-2026-28835
- CVE-2026-28825
- CVE-2026-28818
- CVE-2026-20697
- CVE-2026-28820
- CVE-2026-28837
- CVE-2026-28844
- CVE-2026-28828
- CVE-2026-28852
- CVE-2026-20657
- CVE-2026-28829
- CVE-2026-20665
- CVE-2026-20643
- CVE-2026-28871
- CVE-2026-20664
- CVE-2026-28857
- CVE-2026-28861
- CVE-2026-28859
- CVE-2026-20691
- CVE-2026-28895
- CVE-2026-28874
- CVE-2026-28875
- CVE-2026-28872
- CVE-2026-28873
- CVE-2026-28863
- CVE-2026-28856
- CVE-2026-28858
- CVE-2026-28967
- CVE-2026-43679
- CVE-2026-28959
- CVE-2026-28995
- CVE-2026-39869
- CVE-2026-28936
- CVE-2026-43659
- CVE-2026-28977
- CVE-2026-28992
- CVE-2026-28943
- CVE-2026-28969
- CVE-2026-43654
- CVE-2026-28954
- CVE-2026-28897
- CVE-2026-28952
- CVE-2026-28951
- CVE-2026-28972
- CVE-2026-28986
- CVE-2026-28987
- CVE-2026-28983
- CVE-2026-28929
- CVE-2026-43653
- CVE-2026-43668
- CVE-2026-43666
- CVE-2026-28940
- CVE-2026-28941
- CVE-2026-65367
- CVE-2026-28906
- CVE-2026-43656
- CVE-2026-28846
- CVE-2026-28993
- CVE-2026-28957
- CVE-2026-28907
- CVE-2026-43660
- CVE-2026-28847
- CVE-2026-28904
- CVE-2026-28903
- CVE-2026-28955
- CVE-2026-28953
- CVE-2026-28962
- CVE-2026-28917
- CVE-2026-43670
- CVE-2026-28819
- CVE-2026-28994
- CVE-2026-28920
Frequently Asked Questions
1
What is the severity of CVE-2026-28870?
CVE-2026-28870 has been classified as a medium severity vulnerability impacting multiple Apple products.
2
How do I fix CVE-2026-28870?
To fix CVE-2026-28870, update your affected Apple devices to version 26.4 or later.
3
What products are affected by CVE-2026-28870?
CVE-2026-28870 affects Apple tvOS, iOS, iPadOS, macOS Tahoe, watchOS, and visionOS all up to version 26.4.
4
What type of vulnerability is CVE-2026-28870?
CVE-2026-28870 is an authentication and authorization issue caused by improper state management.
5
Is personal information at risk due to CVE-2026-28870?
Yes, CVE-2026-28870 includes an information leakage vulnerability that could expose user data.