CVE-2026-43818: Processing a maliciously crafted image may lead to arbitrary code execution in Apple iOS and iPadOS
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Processing a maliciously crafted image may lead to arbitrary code execution.
AI Analysis
Technical Summary
CVE-2026-43818 is an integer overflow vulnerability in Apple iOS and iPadOS that occurs when processing a specially crafted image. This flaw could allow an attacker to execute arbitrary code on affected devices. Apple fixed the issue by improving input validation in iOS 26.6, iPadOS 26.6, and corresponding macOS releases. The vulnerability has a CVSS v3.1 base score of 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability may allow remote attackers to execute arbitrary code on affected iOS and iPadOS devices by convincing a user to process a maliciously crafted image. This could lead to full compromise of the device, including unauthorized access to sensitive information and system control.
Mitigation Recommendations
Apple has released official fixes in iOS 26.6 and iPadOS 26.6 to address this vulnerability. Users and administrators should update affected devices to these versions or later to mitigate the risk. No additional mitigation guidance is provided or required beyond applying the official patches.
CVE-2026-43818: Processing a maliciously crafted image may lead to arbitrary code execution in Apple iOS and iPadOS
Description
An integer overflow was addressed with improved input validation. This issue is fixed in iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6 and iPadOS 26.6, macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Processing a maliciously crafted image may lead to arbitrary code execution.
CVSS v3.1
Score 8.8high
Affected software
Apple
iOS and iPadOS
Apple
macOS
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-43818 is an integer overflow vulnerability in Apple iOS and iPadOS that occurs when processing a specially crafted image. This flaw could allow an attacker to execute arbitrary code on affected devices. Apple fixed the issue by improving input validation in iOS 26.6, iPadOS 26.6, and corresponding macOS releases. The vulnerability has a CVSS v3.1 base score of 8.8, indicating high severity with network attack vector, low attack complexity, no privileges required, user interaction required, and impacts to confidentiality, integrity, and availability.
Potential Impact
Successful exploitation of this vulnerability may allow remote attackers to execute arbitrary code on affected iOS and iPadOS devices by convincing a user to process a maliciously crafted image. This could lead to full compromise of the device, including unauthorized access to sensitive information and system control.
Mitigation Recommendations
Apple has released official fixes in iOS 26.6 and iPadOS 26.6 to address this vulnerability. Users and administrators should update affected devices to these versions or later to mitigate the risk. No additional mitigation guidance is provided or required beyond applying the official patches.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:27.822Z
- State
- PUBLISHED
Threat ID: 6a67c1be9c2644c7f8cb1225
Added to database: 07/27/2026, 20:38:22 UTC
Last enriched: 07/29/2026, 21:38:54 UTC
Last updated: 09/11/2026, 22:08:26 UTC
Views: 172
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