CVE-2026-43780

Analyzed Analyzed - Analysis Complete

Integer Overflow in Apple iOS and macOS

Publication date: 2026-07-27

Last updated on: 2026-07-28

Assigner: Apple Inc.

Description

An integer overflow was addressed with improved input validation. This issue is fixed in iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing a maliciously crafted texture may lead to unexpected app termination.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published

2026-07-27

Last Modified

2026-07-28

Generated

2026-08-17

AI Q&A

2026-07-28

EPSS Evaluated

2026-08-15

NVD

CVE-2026-43780

EUVD

EUVD-2026-49479

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos	From 14.0 (inc) to 14.8.8 (exc)
apple	macos	From 15.0 (inc) to 15.7.8 (exc)
apple	macos	From 26.0 (inc) to 26.6 (exc)
apple	ipados	to 26.6 (exc)
apple	iphone_os	to 26.6 (exc)
apple	tvos	to 26.6 (exc)
apple	visionos	to 26.6 (exc)
apple	watchos	to 26.6 (exc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-190	The product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Attack-Flow Graph

Executive Summary

This vulnerability is an integer overflow caused by insufficient input validation. It affects multiple Apple operating systems including iOS, iPadOS, macOS, tvOS, visionOS, and watchOS. Processing a specially crafted texture could trigger the overflow, leading to unexpected app crashes.

Detection Guidance

This vulnerability is specific to Apple operating systems and requires checking for outdated versions. For iOS/iPadOS, macOS, tvOS, visionOS, and watchOS, verify if the installed version is below the patched versions listed (e.g., iOS 26.6 or later). No direct network detection commands are provided in the context.

Impact Analysis

The vulnerability may cause apps to crash unexpectedly when processing malicious textures. This could disrupt normal device usage, lead to data loss if unsaved work is affected, or potentially allow unauthorized access if combined with other exploits.

Compliance Impact

The provided CVE data does not specify any direct impact on compliance with standards like GDPR or HIPAA. The vulnerability involves an integer overflow leading to potential app termination, but no details are given about data exposure or privacy implications that would affect such regulations.

Mitigation Strategies

Update affected Apple devices to the latest versions: iOS 26.6, iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6, tvOS 26.6, visionOS 26.6, or watchOS 26.6 to address the integer overflow issue.

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