CVE-2026-20621: Buffer Overflow

Published Feb 11, 2026
·
Updated

Accessibility. A privacy issue was addressed by removing sensitive data.

Other sources

Accessibility. An inconsistent user interface issue was addressed with improved state management.

— Apple

Admin Framework. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

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

— Apple

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

— Apple

AppleMobileFileIntegrity. A parsing issue in the handling of directory paths was addressed with improved path validation.

— Apple

Credit

Wong Wee Xiang, Loh Boon Keat, Jacob Prezant (prezant.us), Johnny Franks (zeroxjf), an anonymous researcher, jioundai, Nils Hanff @chaos.social)@@nils1729(Hasso Plattner Institute), Amy (amys.website), Atul Kishor Jaiswal, Anonymous(Trend Micro Zero Day Initiative), Yiğit Can YILMAZ@@yilmazcanyigit, Golden Helm Securities(Iru), Gergely Kalman@@gergely_kalman(Iru), Csaba Fitzl@@theevilbit(Iru), Gergely Kalman@@gergely_kalman, Google Threat Analysis Group, Kirin@@Pwnrin, Asaf Cohen, George Karchemsky@@gkarchemsky(Trend Micro Zero Day Initiative), Jian Lee@@speedyfriend433, Keisuke Hosoda, Xin'an Zhou, Juefei Pu, Zhutian Liu, Zhiyun Qian, Zhaowei Tan, Srikanth V. Krishnamurthy, Mathy Vanhoef, Zhongcheng Li(IES Red Team), CVE-2025-59375, Richard Hyunho Im at Route Zero Security (routezero.security)@@richeeta, Ron Masas(BreakPoint), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Dalibor Milanovic, Noah Gregory (wts.dev), Óscar García Pérez, Stanislav Jelezoglo, Viktor Lord Härringtón, Enis Maholli (enismaholli.com), Gongyu Ma@@Mezone0, LeminLimez, Nathaniel Oh@@calysteon, HanQing(TSDubhe), Nan Wang@@eternalsakura13, Tom Van Goethem, EntryHi, Wang Yu(Cyberserval), piffz, Daniel Nurkin, Al Sadman Awal, Mohamed Hamdadou & Mahran Alhazmi, Hichem Maloufi, Christian Mina, Gerson Aldaz, qwerty j0y & Ricardo Garcia, Dorian Del Valle, Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Mickey Jin@@patch1t, @@cloudlldb, Ryan Dowd@@_rdowd, Ron Elemans, Murray Mike, 이동하 (Lee Dong Ha)(SSA Lab), Chunyu Song(NorthSea), Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), Xiaolong Bai(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Pwn2car, Morris Richman@@morrisinlife

Affected Software

13 affected componentsFixes available
Apple visionOS<26.3
26.3
Apple macOS Sequoia<15.7.4
15.7.4
Apple iOS<26.3
26.3
Apple iPadOS<26.3
26.3
Apple macOS Tahoe<26.3
26.3
Apple iOS<18.7.5
18.7.5
Apple iPadOS<18.7.5
18.7.5
Apple macOS Sonoma<14.8.4
14.8.4
Apple iPadOS<26.3
Apple iPhone OS<26.3
Apple macOS<14.8.4
Apple macOS>=15.0<15.7.4
Apple macOS>=26.0<26.3

Event History

Feb 11, 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
DescriptionAffected Software
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
Affected Software
CVE Published
via MITRE·10:58 PM
Data Sourced
via MITRE·10:58 PM
DescriptionWeakness
Data Sourced
via NVD·11:16 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-2026-20621?

CVE-2026-20621 is classified as a privacy and accessibility vulnerability.

2

How do I fix CVE-2026-20621?

To address CVE-2026-20621, update your affected Apple device to the latest version, such as iOS 26.3 or macOS 15.7.4.

3

What systems are affected by CVE-2026-20621?

CVE-2026-20621 affects several Apple operating systems including visionOS, iOS, iPadOS, and macOS versions up to specific releases.

4

What kind of issues does CVE-2026-20621 address?

CVE-2026-20621 resolves a privacy issue, inconsistent user interface issues, and improves path validation for directory handling.

5

Is there a workaround for CVE-2026-20621?

There are no official workarounds for CVE-2026-20621, and updating to the latest software is recommended.

Company

Resources

Contact

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