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. Processing maliciously crafted web content may lead to an unexpected process crash.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Apple Safari's web content processing, which may lead to an unexpected process crash. Apple fixed the issue by improving memory management in Safari 26.5.2 and corresponding OS versions. No CVSS score is provided, and no known exploits are reported in the wild.
Potential Impact
An attacker could cause Safari to crash unexpectedly by delivering maliciously crafted web content. This results in a denial of service for the user but no further impact is described.
Mitigation Recommendations
Update Safari to version 26.5.2 or later, or update to iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 where the issue is fixed. Patch status is confirmed by the vendor advisory indicating an official fix is available.
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. 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 involves a use-after-free condition in Apple Safari's web content processing, which may lead to an unexpected process crash. Apple fixed the issue by improving memory management in Safari 26.5.2 and corresponding OS versions. No CVSS score is provided, and no known exploits are reported in the wild.
Potential Impact
An attacker could cause Safari to crash unexpectedly by delivering maliciously crafted web content. This results in a denial of service for the user but no further impact is described.
Mitigation Recommendations
Update Safari to version 26.5.2 or later, or update to iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 where the issue is fixed. Patch status is confirmed by the vendor advisory indicating an official fix is available.
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: 06/29/2026, 20:52:17 UTC
Last updated: 06/30/2026, 00:29:18 UTC
Views: 5
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