CVE-2026-20668: Use After Free

Published Feb 11, 2026
·
Updated

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

Other sources

A logging issue was addressed with improved data redaction. This issue is fixed in iOS 18.7.7 and iPadOS 18.7.7, iOS 26.3 and iPadOS 26.3, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, macOS Tahoe 26.3, visionOS 26.3. An app may be able to access sensitive user data.

— NVD

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

— Apple

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

— Apple

Accounts. An authorization 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

Credit

Amy (amys.website), 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, an anonymous researcher, Google Threat Analysis Group, Kirin@@Pwnrin, 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, CVE-2025-59375, Ron Masas(BreakPoint), Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), Noah Gregory (wts.dev), Enis Maholli (enismaholli.com), Gongyu Ma@@Mezone0, Nathaniel Oh@@calysteon, HanQing(TSDubhe), Nan Wang@@eternalsakura13, Tom Van Goethem, EntryHi, Wang Yu(Cyberserval), Johnny Franks (zeroxjf), Mickey Jin@@patch1t, Ryan Dowd@@_rdowd, jioundai, Justin Cohen(Google), 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), CVE-2025-64505, iG0x72(XiguaSec), JJ(XiguaSec), Lehan Dilusha Jayasinghe, Gor Aleksanyan(BoB 0xB6), Dhiyanesh Selvaraj@@redroot97(BoB 0xB6), 이동하 (Lee Dong Ha(BoB 0xB6), Johnny Franks@@0xjohnny, Alex Radocea, Hazem Issa, Yongdae Kim @ SysSec, KAIST, Caspian Tarafdar, Andrew Becker, webb, Thomas Espach, Mike Cardwell(grepular), Bob Lord, Hongze Wu(Ant Group Infrastructure Security Team), Shuaike Dong(Ant Group Infrastructure Security Team), @@hamayanhamayan, Héloïse Gollier, Mathy Vanhoef (KU Leuven), @@cloudlldb, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Asaf Cohen, Murray Mike, Chunyu Song(NorthSea), Rodolphe Brunetti@@eisw0lf(Lupus Nova), Pwn2car, CVE-2026-20622, Morris Richman@@morrisinlife, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, LeminLimez, Rosyna Keller(Totally Not Malicious Software), CVE-2025-55753, CVE-2025-58098, CVE-2025-59775, CVE-2025-65082, CVE-2025-66200, Jex Amro, YingQi Shi@@Mas0nShi(DBAppSecurity's WeBin lab), Mustafa Calap@@ordinal0, dbg.re), 风沐云烟@@binary_fmyy, Minghao Lin@@Y1nKoc, DARKNAVY@@DarkNavyOrg, hari shanmugam, Sreejith Krishnan R, Himanshu Bharti@@Xpl0itme(Khatima), Matej Moravec@@MacejkoMoravec, Dawuge(Shuffle Team), Hunan University, Kun Peeks@@SwayZGl1tZyyy, Gyujeong Jin at Team.0xb6@@G1uN4sh, wdszzml, Atuin Automated Vulnerability Discovery Engine, Christian Kohlschütter, Dave G., @@pixiepointsec, Wong Wee Xiang, Loh Boon Keat, Jacob Prezant (prezant.us), Nils Hanff @chaos.social)@@nils1729(Hasso Plattner Institute), Atul Kishor Jaiswal, Richard Hyunho Im at Route Zero Security (routezero.security)@@richeeta, Dalibor Milanovic, Óscar García Pérez, Stanislav Jelezoglo, Viktor Lord Härringtón

Affected Software

16 affected componentsFixes available
Apple iOS<18.7.7
18.7.7
Apple iPadOS<18.7.7
18.7.7
Apple macOS Sequoia<15.7.5
15.7.5
Apple macOS Sonoma<14.8.5
14.8.5
Apple iOS<26.3
26.3
Apple iPadOS<26.3
26.3
Apple macOS Tahoe<26.3
26.3
Apple visionOS<26.3
26.3
Apple iPadOS<18.7.7
Apple iPadOS>=26.0<26.3
Apple iPhone OS<18.7.7
Apple iPhone OS>=26.0<26.3
Apple macOS<14.8.5
Apple macOS>=15.0<15.7.5
Apple macOS>=26.0<26.3
Apple visionOS<26.3

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 26.3
  2. Upgrade

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

    Fixed in 18.7.7
  3. Upgrade

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

    Fixed in 15.7.5
  4. Upgrade

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

    Fixed in 14.8.5
  5. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 18.7.7
  6. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 18.7.7
  7. Upgrade

    Upgrade iOS to a version that resolves this vulnerability.

    Fixed in 26.3
  8. Upgrade

    Upgrade iPadOS to a version that resolves this vulnerability.

    Fixed in 26.3
  9. Upgrade

    Upgrade macOS Sequoia to a version that resolves this vulnerability.

    Fixed in 15.7.5
  10. Upgrade

    Upgrade macOS Sonoma to a version that resolves this vulnerability.

    Fixed in 14.8.5
  11. Upgrade

    Upgrade macOS Tahoe to a version that resolves this vulnerability.

    Fixed in 26.3
  12. Upgrade

    Upgrade visionOS to a version that resolves this vulnerability.

    Fixed in 26.3

Event History

Feb 11, 2026
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Mar 25, 2026
CVE Published
via MITRE·12:35 AM
Data Sourced
via MITRE·12:35 AM
DescriptionWeakness
Data Sourced
via NVD·01:17 AM
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-2026-20668?

The severity of CVE-2026-20668 is medium with a CVSS score of 5.5.

2

How do I fix CVE-2026-20668?

To fix CVE-2026-20668, update to iOS 18.7.7, iPadOS 18.7.7, macOS Sequoia 15.7.5, macOS Sonoma 14.8.5, or macOS Tahoe 26.3.

3

What kind of issue is CVE-2026-20668?

CVE-2026-20668 addresses an authentication issue with improved state management and a logging issue with improved data redaction.

4

Which Apple operating systems are affected by CVE-2026-20668?

CVE-2026-20668 affects Apple iPadOS, macOS, iOS, and visionOS.

5

When was CVE-2026-20668 published?

CVE-2026-20668 was published on February 11, 2026.

Company

Resources

Contact

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