CVE-2026-43816: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
CVE-2026-43816 is a medium severity vulnerability in Apple iOS and iPadOS involving an out-of-bounds write that could allow an app to cause unexpected system termination. The issue was addressed by improved bounds checking and fixed in iOS 26.6 and iPadOS 26.6. The vulnerability does not impact confidentiality or integrity but affects system availability by potentially causing crashes.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-43816) is an out-of-bounds write in Apple iOS and iPadOS that could be triggered by a malicious app to cause unexpected system termination. The flaw was mitigated by improved bounds checking and fixed in version 26.6 of iOS and iPadOS. The CVSS 3.1 base score is 5.5 (medium) with an attack vector of local, low complexity, no privileges required, user interaction needed, and impact limited to availability only. There are no known exploits in the wild. The vulnerability is classified under CWE-787 (Out-of-bounds Write).
Potential Impact
An attacker with local access and the ability to trick a user into interacting with a malicious app could cause the affected device to terminate unexpectedly, impacting system availability. There is no impact on confidentiality or integrity. No known exploits have been reported.
Mitigation Recommendations
This issue is fixed in iOS 26.6 and iPadOS 26.6. Users and administrators should update affected devices to these versions or later to remediate the vulnerability. No additional mitigation is required once the update is applied.
CVE-2026-43816: An app may be able to cause unexpected system termination in Apple iOS and iPadOS
Description
CVE-2026-43816 is a medium severity vulnerability in Apple iOS and iPadOS involving an out-of-bounds write that could allow an app to cause unexpected system termination. The issue was addressed by improved bounds checking and fixed in iOS 26.6 and iPadOS 26.6. The vulnerability does not impact confidentiality or integrity but affects system availability by potentially causing crashes.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-43816) is an out-of-bounds write in Apple iOS and iPadOS that could be triggered by a malicious app to cause unexpected system termination. The flaw was mitigated by improved bounds checking and fixed in version 26.6 of iOS and iPadOS. The CVSS 3.1 base score is 5.5 (medium) with an attack vector of local, low complexity, no privileges required, user interaction needed, and impact limited to availability only. There are no known exploits in the wild. The vulnerability is classified under CWE-787 (Out-of-bounds Write).
Potential Impact
An attacker with local access and the ability to trick a user into interacting with a malicious app could cause the affected device to terminate unexpectedly, impacting system availability. There is no impact on confidentiality or integrity. No known exploits have been reported.
Mitigation Recommendations
This issue is fixed in iOS 26.6 and iPadOS 26.6. Users and administrators should update affected devices to these versions or later to remediate the vulnerability. No additional mitigation is required once the update is applied.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-pw2w-cc2c-542x
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43816"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6940389c2644c7f866b50f
Added to database: 07/28/2026, 23:50:16 UTC
Last enriched: 07/30/2026, 11:34:51 UTC
Last updated: 09/12/2026, 22:01:34 UTC
Views: 103
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