CVE-2026-28991: An app may be able to cause a denial-of-service in Apple iOS and iPadOS
CVE-2026-28991 is a vulnerability in Apple iOS and iPadOS where an out-of-bounds read could allow an app to cause a denial-of-service condition. The issue has been addressed with improved bounds checking and fixed in iOS 26. 5 and iPadOS 26. 5, as well as other Apple operating systems. There are no known exploits in the wild at this time.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in Apple iOS and iPadOS that could be triggered by a malicious app to cause a denial-of-service (DoS). Apple fixed the issue by improving bounds checking in iOS 26.5 and iPadOS 26.5, along with corresponding updates to macOS Tahoe, tvOS, visionOS, and watchOS. No CVSS score is available, and no detailed technical exploitation information is provided.
Potential Impact
An attacker controlling a malicious app could cause a denial-of-service on affected Apple devices by exploiting the out-of-bounds read vulnerability. This could lead to app or system crashes, impacting availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
A fix is available in iOS 26.5 and iPadOS 26.5. Users and administrators should update affected Apple devices to these versions or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the official OS updates.
CVE-2026-28991: An app may be able to cause a denial-of-service in Apple iOS and iPadOS
Description
CVE-2026-28991 is a vulnerability in Apple iOS and iPadOS where an out-of-bounds read could allow an app to cause a denial-of-service condition. The issue has been addressed with improved bounds checking and fixed in iOS 26. 5 and iPadOS 26. 5, as well as other Apple operating systems. There are no known exploits in the wild at this time.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in Apple iOS and iPadOS that could be triggered by a malicious app to cause a denial-of-service (DoS). Apple fixed the issue by improving bounds checking in iOS 26.5 and iPadOS 26.5, along with corresponding updates to macOS Tahoe, tvOS, visionOS, and watchOS. No CVSS score is available, and no detailed technical exploitation information is provided.
Potential Impact
An attacker controlling a malicious app could cause a denial-of-service on affected Apple devices by exploiting the out-of-bounds read vulnerability. This could lead to app or system crashes, impacting availability. There are no reports of active exploitation in the wild.
Mitigation Recommendations
A fix is available in iOS 26.5 and iPadOS 26.5. Users and administrators should update affected Apple devices to these versions or later to remediate the vulnerability. Since this is not a cloud service, remediation depends on applying the official OS updates.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-03-03T16:36:03.995Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a028760cbff5d86108b675f
Added to database: 5/12/2026, 1:50:24 AM
Last enriched: 5/12/2026, 2:04:53 AM
Last updated: 5/12/2026, 3:49:39 AM
Views: 2
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