CVE-2025-43203: Input Validation

Published Sep 15, 2025
·
Updated

Apple Neural Engine. An out-of-bounds access issue was addressed with improved bounds checking.

Other sources

AppleMobileFileIntegrity. A permissions issue was addressed with additional restrictions.

— Apple

Audio. An out-of-bounds access issue was addressed with improved bounds checking.

— Apple

Audio. An out-of-bounds read was addressed with improved bounds checking.

— Apple

Authentication Services. The issue was addressed with improved UI.

— Apple

Bluetooth. A logging issue was addressed with improved data redaction.

— Apple

Credit

Mickey Jin@@patch1t, Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Michael Reeves@@IntegralPilot, Nikita Sakalouski, Csaba Fitzl@@theevilbit(Kandji), Rosyna Keller(Totally Not Malicious Software), Guilherme Rambo(Best Buddy Apps), Yinyi Wu@@_3ndy1(Dawn Security Lab of JD), @@zlluny(Trend Micro Zero Day Initiative), 이동하 (Lee Dong Ha)(SSA Lab), Keisuke Hosoda, Viktor Oreshkin, Philipp Baldauf, Minghao Lin@@Y1nKoc, Lyutoon@@Lyutoon_, YingQi Shi@@Mas0n, Dawuge(Shuffle Team), Tom Brzezinski, Abhay Kailasia@@abhay_kailasia(C), KPC(Cisco Talos), Evan Waelde, an anonymous researcher, 정답이 아닌 해답, Richard Hyunho Im@@richeeta, Jiwon Park, Noah Gregory (wts.dev), CVE-2025-6965, JZ, Seo Hyun-gyu@@wh1te4ever, Luke Roberts@@rookuu, Jaydev Ahire, Big Bear, Ignacio Sanmillan@@ulexec, Mike Cardwell(grepular), Bob Lord, Pawel Wylecial(REDTEAM), Nathaniel Oh@@calysteon

Affected Software

6 affected componentsFixes available
Apple iOS<26
26
Apple iPadOS<26
26
Apple iOS<18.7
18.7
Apple iPadOS<18.7
18.7
Apple iPadOS<18.7
Apple iPhone OS<18.7

Event History

Sep 15, 2025
Data Sourced
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionWeakness
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Updated
via Apple·12:00 AM
DescriptionAffected Software
Updated
via Apple·12:00 AM
Affected Software
CVE Published
via MITRE·10:34 PM
Data Sourced
via MITRE·10:34 PM
DescriptionWeakness
Data Sourced
via NVD·11:15 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-2025-43203?

CVE-2025-43203 is considered a critical vulnerability due to its potential to allow for arbitrary code execution.

2

How do I fix CVE-2025-43203?

To fix CVE-2025-43203, users should update their affected devices to the latest versions of iOS or iPadOS as specified by Apple.

3

Which versions of iOS are affected by CVE-2025-43203?

CVE-2025-43203 affects iOS versions prior to 18.7 and 26.

4

Which versions of iPadOS are susceptible to CVE-2025-43203?

CVE-2025-43203 impacts iPadOS versions earlier than 18.7 and 26.

5

What types of issues does CVE-2025-43203 address?

CVE-2025-43203 addresses out-of-bounds access issues and a permissions issue along with other vulnerabilities.

Company

Resources

Contact

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