CVE-2026-43699: Processing maliciously crafted web content may lead to an unexpected process crash in Apple Safari
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.
AI Analysis
Technical Summary
This vulnerability is a use-after-free (CWE-416) in Apple Safari that occurs when processing specially crafted web content, leading to an unexpected process crash. The issue was resolved by improving memory management in Safari 26.5.2 and corresponding OS releases (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, no privileges required, user interaction needed, unchanged scope, no confidentiality or integrity impact, and high impact on availability.
Potential Impact
Exploitation of this vulnerability may cause Safari to crash unexpectedly, resulting in denial of service for the user. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available in Safari 26.5.2 and corresponding Apple OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). Users and administrators should update affected Safari and Apple operating systems to these versions or later to remediate this vulnerability.
CVE-2026-43699: Processing maliciously crafted web content may lead to an unexpected process crash in Apple Safari
Description
A use-after-free issue was addressed with improved memory management. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6. Processing maliciously crafted web content may lead to an unexpected process crash.
CVSS v3.1
Score 6.5medium
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a use-after-free (CWE-416) in Apple Safari that occurs when processing specially crafted web content, leading to an unexpected process crash. The issue was resolved by improving memory management in Safari 26.5.2 and corresponding OS releases (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). The CVSS 3.1 base score is 6.5, reflecting network attack vector, low attack complexity, no privileges required, user interaction needed, unchanged scope, no confidentiality or integrity impact, and high impact on availability.
Potential Impact
Exploitation of this vulnerability may cause Safari to crash unexpectedly, resulting in denial of service for the user. There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A fix is available in Safari 26.5.2 and corresponding Apple OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). Users and administrators should update affected Safari and Apple operating systems to these versions or later to remediate this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.643Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d227e9c7971972ce73
Added to database: 06/29/2026, 20:21:38 UTC
Last enriched: 07/30/2026, 00:54:16 UTC
Last updated: 08/12/2026, 12:41:09 UTC
Views: 73
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