CVE-2026-84531: Processing maliciously crafted NTLM input may lead to unexpected app termination in Apple iOS and iPadOS
A vulnerability in Apple iOS and iPadOS involves an out-of-bounds write caused by improper bounds checking when processing maliciously crafted NTLM input. This flaw can cause unexpected application termination. The issue is resolved in iOS 27 and iPadOS 27.
AI Analysis
Technical Summary
CVE-2026-84531 is an out-of-bounds write vulnerability in Apple iOS and iPadOS that occurs due to insufficient bounds checking when handling NTLM input. Maliciously crafted NTLM data can trigger this flaw, leading to unexpected termination of affected applications. Apple fixed this issue in iOS 27 and iPadOS 27, as well as macOS Golden Gate 27.
Potential Impact
Successful exploitation of this vulnerability may cause affected applications to terminate unexpectedly, potentially disrupting user experience or application availability. There is no indication of code execution or data compromise from the provided information.
Mitigation Recommendations
Apply the official update to iOS 27 or iPadOS 27, which includes the fix for this vulnerability. Users and administrators should upgrade affected devices to these versions to remediate the issue.
CVE-2026-84531: Processing maliciously crafted NTLM input may lead to unexpected app termination in Apple iOS and iPadOS
Description
A vulnerability in Apple iOS and iPadOS involves an out-of-bounds write caused by improper bounds checking when processing maliciously crafted NTLM input. This flaw can cause unexpected application termination. The issue is resolved in iOS 27 and iPadOS 27.
Affected software
Apple
iOS and iPadOS
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84531 is an out-of-bounds write vulnerability in Apple iOS and iPadOS that occurs due to insufficient bounds checking when handling NTLM input. Maliciously crafted NTLM data can trigger this flaw, leading to unexpected termination of affected applications. Apple fixed this issue in iOS 27 and iPadOS 27, as well as macOS Golden Gate 27.
Potential Impact
Successful exploitation of this vulnerability may cause affected applications to terminate unexpectedly, potentially disrupting user experience or application availability. There is no indication of code execution or data compromise from the provided information.
Mitigation Recommendations
Apply the official update to iOS 27 or iPadOS 27, which includes the fix for this vulnerability. Users and administrators should upgrade affected devices to these versions to remediate the issue.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-01T21:13:17.750Z
- State
- PUBLISHED
Threat ID: 6aa8610655bf5e2cf59d297e
Added to database: 09/14/2026, 21:03:02 UTC
Last enriched: 09/14/2026, 22:31:22 UTC
Last updated: 09/15/2026, 03:01:23 UTC
Views: 2
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