A use after free issue was addressed with improved memory management. (CVE-2026-43799)
A use after free issue was addressed with improved memory management. 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. An app may be able to cause unexpected system termination.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-43799) is a use-after-free issue (CWE-416) that was resolved by improving memory management in affected Apple operating systems. Exploitation could allow an app to cause unexpected system termination, impacting confidentiality, integrity, and availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, with high impact on confidentiality, integrity, and availability (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The issue is fixed in 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, and watchOS 26.6.
Potential Impact
An attacker could exploit this use-after-free vulnerability to cause unexpected system termination, potentially leading to denial of service and impacting system confidentiality, integrity, and availability. The vulnerability does not require privileges or user interaction to exploit, increasing its risk.
Mitigation Recommendations
This vulnerability has been fixed in the following 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, and watchOS 26.6. Users and administrators should apply these updates to remediate the issue. No additional mitigation is indicated by the vendor advisory.
A use after free issue was addressed with improved memory management. (CVE-2026-43799)
Description
A use after free issue was addressed with improved memory management. 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. An app may be able to cause unexpected system termination.
CVSS v3.1
Score 9.8critical
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-43799) is a use-after-free issue (CWE-416) that was resolved by improving memory management in affected Apple operating systems. Exploitation could allow an app to cause unexpected system termination, impacting confidentiality, integrity, and availability. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges or user interaction required, with high impact on confidentiality, integrity, and availability (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H). The issue is fixed in 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, and watchOS 26.6.
Potential Impact
An attacker could exploit this use-after-free vulnerability to cause unexpected system termination, potentially leading to denial of service and impacting system confidentiality, integrity, and availability. The vulnerability does not require privileges or user interaction to exploit, increasing its risk.
Mitigation Recommendations
This vulnerability has been fixed in the following 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, and watchOS 26.6. Users and administrators should apply these updates to remediate the issue. No additional mitigation is indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-347f-3cff-8gh8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43799"]
- Database Specific Severity
- CRITICAL
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a6942009c2644c7f86ce03e
Added to database: 07/28/2026, 23:57:52 UTC
Last enriched: 07/29/2026, 11:07:44 UTC
Last updated: 09/11/2026, 07:31:53 UTC
Views: 130
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