CVE-2025-43520: Apple Multiple Products Classic Buffer Overflow Vulnerability

Published Nov 3, 2025
·
Updated

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.

Other sources

Accessibility. A permissions issue was addressed with additional restrictions.

— Apple

Admin Framework. A logic issue was addressed with improved checks.

— Apple

Admin Framework. The issue was addressed with improved checks.

— Apple

App Store. A logging issue was addressed with improved data redaction.

— Apple

Apple Account. A privacy issue was addressed with improved checks.

— Apple

Credit

Ron Masas(BreakPoint), Pinak Oza, an anonymous researcher, Gergely Kalman@@gergely_kalman, Hikerell (Loadshine Lab), Zhongcheng Li(IES Red Team of ByteDance), Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), iisBuri, Apple, Cristian Dinca (icmd.tech), Dave G.(supernetworks), Alex Radocea(supernetworks), Taavi Eomäe(Zone Media), Romain Lebesle(Khatima), Himanshu Bharti@@Xpl0itme(Khatima), Dalibor Milanovic, @@RenwaX23, Stanislav Jelezoglo, Aleksejs Popovs, Phil Beauvoir, Google Big Sleep, Nan Wang@@eternalsakura13, rheza@@ginggilBesel(Trend Micro Zero Day Initiative), shandikri(Trend Micro Zero Day Initiative), Gary Kwong(Trend Micro Zero Day Initiative), Justin Cohen(Google), Tom Van Goethem, Ryan Dowd@@_rdowd, Csaba Fitzl@@theevilbit(Kandji), Nolan Astrein(Kandji), Mickey Jin@@patch1t, Joseph Ravichandran@@0xjprx(MIT CSAIL), Dave G. (supernetworks.org), JZ, Michael Reeves@@IntegralPilot, Duy Trần@@khanhduytran0, Morris Richman@@morrisinlife, 이동하 (Lee Dong Ha(BoB 14th), wac(Trend Micro Zero Day Initiative), Adwiteeya Agrawal, Rodolphe BRUNETTI@@eisw0lf(Lupus Nova), pattern-f@@pattern_F_, Ferdous Saljooki@@malwarezoo(Jamf), Murray Mike, Michael DePlante@@izobashi(Trend Micro Zero Day Initiative), BynarIO AI (bynar.io), Kirin@@Pwnrin, Atul R V, Asaf Cohen, CVE-2024-43398, CVE-2024-49761, CVE-2025-6442, Vivek Dhar, ASI (RM) in Border Security Force, FTR HQ BSF Kashmir, Nikolai Skliarenko(Trend Micro Zero Day Initiative), Kirin@@Pwnrin(Microsoft), Jonathan Bar Or@@yo_yo_yo_jbo(Microsoft), Wang Yu(Cyberserval), Dennis Briner, Minghao Lin@@Y1nKoc, Lyutoon@@Lyutoon_, YingQi Shi@@Mas0n, Joshua Thomas, rheza@@ginggilBesel, Lehan Dilusha Jayasinghe, Gary Kwong, Wojciech Regula(SecuRing), Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Lukaah Marlowe, Rosyna Keller(Totally Not Malicious Software), Google Threat Analysis Group, KPC(Cisco Talos), Isaiah Wan, Will Caine, Thomas Salomon, Sufiyan Gouri (TU Darmstadt), Phil Scott & Richard Hyunho Im (@richeeta)@@MrPeriPeri, Mark Bowers, Joey Hewitt, Dylan Rollins, Arthur Baudoin, Andr.Ess, Mikael Kinnman, 이동하 (Lee Dong Ha)(SSA Lab), Alexia Wilson(Microsoft), Christine Fossaceca(Microsoft), CVE-2025-6965, Kenneth Chew, Rodolphe Brunetti@@eisw0lf(Lupus Nova), @@EthanArbuckle, Doug Hogan, Zhongquan Li@@Guluisacat, an anonymous researcher(Microsoft), Amy@@asentientbot, CVE-2025-32462, CVE-2025-53906, @@cloudlldb

Affected Software

31 affected componentsFixes available
Apple WatchOS
Apple iOS>=18.7.2<=26.1
Apple iPadOS>=18.7.2<=26.1
Apple macOS Tahoe
Apple visionOS
Apple tvOS
Apple macOS Sonoma>=14.8.2<=26.1
Apple macOS Sequoia>=15.7.2<=26.1
Apple iOS
Apple iPadOS
Apple macOS Sonoma<14.8.2
14.8.2
Apple WatchOS<26.1
26.1
Apple macOS Sequoia<15.7.2
15.7.2
Apple iOS<18.7.2
18.7.2
Apple iPadOS<18.7.2
18.7.2
Apple visionOS<26.1
26.1
Apple tvOS<26.1
26.1
Apple macOS Tahoe<26.1
26.1
Apple iOS<26.1
26.1
Apple iPadOS<26.1
26.1
Apple Multiple Products
Apple iPadOS<18.7.2
Apple iPadOS=26.0
Apple iPhone OS<18.7.2
Apple iPhone OS=26.0
Apple macOS>=14.0<14.8.2
Apple macOS>=15.0<15.7.2
Apple macOS=26.0
Apple tvOS<26.1
Apple visionOS<26.1
Apple WatchOS<26.1

Remediation

Information

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Event History

Nov 3, 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
Affected Software
Nov 5, 2025
Updated
via Apple·12:00 AM
DescriptionWeaknessAffected Software
Dec 12, 2025
CVE Published
via MITRE·08:56 PM
Data Sourced
via MITRE·08:56 PM
DescriptionWeakness
Data Sourced
via NVD·09:15 PM
DescriptionSeverityWeaknessAffected Software
Mar 18, 2026
News Published
via BleepingComputer·02:02 PM
News Published
via BleepingComputer·02:03 PM
News Published
via The Register·09:39 PM
News Published
via The Register·09:43 PM
Mar 20, 2026
Known Exploited
via CISA·12:00 AM
Data Sourced
via CISA·12:00 AM
RemedyDescriptionAffected Software
Mar 23, 2026
News Published
via BleepingComputer·08:37 AM
Apr 1, 2026
News Published
via BleepingComputer·09:50 PM
Oct 15, 57929
Event
via NVD·06:53 AM

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-2025-43520?

CVE-2025-43520 is classified as a memory corruption vulnerability that could allow a malicious application to cause unexpected behavior.

2

How do I fix CVE-2025-43520?

To address CVE-2025-43520, update your devices to watchOS 26.1, iOS 18.7.2, iPadOS 18.7.2, macOS Tahoe 26.1, visionOS 26.1, tvOS 26.1, macOS Sonoma 14.8.2, or macOS Sequoia 15.7.2.

3

Which devices are affected by CVE-2025-43520?

CVE-2025-43520 affects devices running watchOS, iOS, iPadOS, macOS Tahoe, visionOS, tvOS, macOS Sonoma, and macOS Sequoia prior to the fixed versions.

4

Is there any risk if I do not update to the fixed versions for CVE-2025-43520?

Failure to update may expose your device to potential exploitation through memory corruption issues associated with CVE-2025-43520.

5

What has been changed in the fix for CVE-2025-43520?

The fix for CVE-2025-43520 includes improved memory handling to mitigate the risk of memory corruption.

Company

Resources

Contact

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