CVE-2025-46299: Integer Overflow

Published Dec 12, 2025
·
Updated

A memory initialization issue was addressed with improved memory handling. This issue is fixed in Safari 26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2, tvOS 26.2, visionOS 26.2, watchOS 26.2. Processing maliciously crafted web content may disclose internal states of the app.

Other sources

A memory initialization issue was addressed with improved memory handling. This issue is fixed in tvOS 26.2, Safari 26.2, watchOS 26.2, visionOS 26.2, iOS 26.2 and iPadOS 26.2, macOS Tahoe 26.2. Processing maliciously crafted web content may disclose internal states of the app.

— Red Hat

App Store. A permissions issue was addressed with additional restrictions.

— Apple

AppleJPEG. The issue was addressed with improved bounds checks.

— Apple

AppleMobileFileIntegrity. A downgrade issue affecting Intel-based Mac computers was addressed with additional code-signing restrictions.

— Apple

AppleMobileFileIntegrity. A permissions issue was addressed with additional restrictions.

— Apple

Credit

Andreas Jaegersberger & Ro Achterberg(Nosebeard Labs), @@retsew0x01, Wojciech Regula(SecuRing), Hossein Lotfi@@hosselot(Trend Micro Zero Day Initiative), Nan Wang@@eternalsakura13, Google Big Sleep, Phil Pizlo(Epic Games), Google Threat Analysis Group, Apple, 이동하 (Lee Dong Ha(BoB 14th), Michael Reeves@@IntegralPilot, CVE-2024-7264, CVE-2025-9086, Andrew Calvano(Meta Product Security), Lucas Pinheiro(Meta Product Security), Duy Trần@@khanhduytran0, Kaitao Xie(Alibaba Group), Xiaolong Bai(Alibaba Group), floeki(IES Red Team of ByteDance), Zhongcheng Li(IES Red Team of ByteDance), an anonymous researcher, Riley Walz, Yiğit Ocak, Rosyna Keller(Totally Not Malicious Software), an anonymous researcher(Technische Hochschule Ingolstadt), Michael Schmutzer(Technische Hochschule Ingolstadt), Iván Savransky, Bing Shi(Alibaba Group), Wenchao Li(Alibaba Group), (Indiana University Bloomington), Luyi Xing(Indiana University Bloomington), Noah Gregory (wts.dev), Kirin@@Pwnrin, Andrei Simion, piffz, Daniel Nurkin, Al Sadman Awal, Mohamed Hamdadou & Mahran Alhazmi, Hichem Maloufi, Christian Mina, Gerson Aldaz, qwerty j0y & Ricardo Garcia, Dorian Del Valle, iG0x72(XiguaSec), JJ(XiguaSec), Lehan Dilusha Jayasinghe, CVE-2025-5918, Sumanth Rao(UC San Diego), Ye Shu(UC San Diego), Stefan Savage(UC San Diego), Aaron Schulman(UC San Diego), Geoffrey M. Voelker(UC San Diego), Enze Liu (Carnegie Mellon University), Mickey Jin@@patch1t, Jex Amro, Ron Elemans, Kirin@@Pwnrin(Fudan University), LFY@@secsys(Fudan University), Csaba Fitzl@@theevilbit(Iru), Kenneth Chew, Haoling Zhou(SecLab of The Ohio State University), Shixuan Zhao@@NSKernel(SecLab of The Ohio State University), Chao Wang@@evi0s(SecLab of The Ohio State University), Zhiqiang Lin(SecLab of The Ohio State University), Atul R V, Morris Richman@@morrisinlife, Gergely Kalman@@gergely_kalman, Kay Belardinelli (Harvard University)

Affected Software

21 affected componentsFixes available
Apple tvOS<26.2
Apple Safari<26.2
Apple WatchOS<26.2
Apple visionOS<26.2
Apple iOS<26.2
Apple iPadOS<26.2
Apple macOS Tahoe<26.2
Apple WatchOS<26.2
26.2
Apple Safari<26.2
26.2
Apple tvOS<26.2
26.2
Apple visionOS<26.2
26.2
Apple iOS<26.2
26.2
Apple iPadOS<26.2
26.2
Apple macOS Tahoe<26.2
26.2
Apple Safari<26.2
Apple iPadOS<26.2
Apple iPhone OS<26.2
Apple macOS<26.2
Apple tvOS<26.2
Apple visionOS<26.2
Apple WatchOS<26.2

Event History

Dec 12, 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
Jan 9, 2026
CVE Published
via MITRE·09:15 PM
Data Sourced
via MITRE·09:15 PM
DescriptionWeakness
Data Sourced
via NVD·10:15 PM
DescriptionSeverityWeaknessAffected Software
Mar 18, 2026
Data Sourced
via Red Hat·08:17 PM
DescriptionSeverityAffected 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-2025-46299?

CVE-2025-46299 has been classified as a medium severity vulnerability that can disclose internal states of the app.

2

How do I fix CVE-2025-46299?

To fix CVE-2025-46299, ensure you update to the latest versions: tvOS 26.2, Safari 26.2, watchOS 26.2, visionOS 26.2, iOS 26.2, iPadOS 26.2, or macOS Tahoe 26.2.

3

What software is affected by CVE-2025-46299?

CVE-2025-46299 affects Apple tvOS, Safari, watchOS, visionOS, iOS, iPadOS, and macOS Tahoe versions prior to 26.2.

4

What types of attacks can CVE-2025-46299 facilitate?

CVE-2025-46299 can facilitate attacks aimed at processing maliciously crafted web content, potentially leading to unauthorized information disclosure.

5

When was CVE-2025-46299 disclosed?

CVE-2025-46299 was disclosed as part of a security update that included improvements to memory handling.

Company

Resources

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