A use-after-free issue was addressed with improved memory management. (CVE-2026-43734)
CVE-2026-43734 is a use-after-free vulnerability that was addressed by improved memory management. It affects Safari, iOS, iPadOS, and macOS Tahoe prior to version 26.5.2. Processing maliciously crafted web content could cause an unexpected process crash. The vulnerability has a CVSS score of 6.5, indicating medium severity.
AI Analysis
Technical Summary
This vulnerability is a use-after-free issue (CWE-416) in Safari and related Apple operating systems. It allows an attacker to cause an unexpected process crash by processing maliciously crafted web content. The issue was fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2 through improved memory management. There are no known exploits in the wild. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, but high availability impact.
Potential Impact
The vulnerability can lead to an unexpected process crash, causing denial of service (availability impact). There is no impact on confidentiality or integrity according to the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
A fix is available in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. Users and administrators should update to these versions to remediate the vulnerability.
A use-after-free issue was addressed with improved memory management. (CVE-2026-43734)
Description
CVE-2026-43734 is a use-after-free vulnerability that was addressed by improved memory management. It affects Safari, iOS, iPadOS, and macOS Tahoe prior to version 26.5.2. Processing maliciously crafted web content could cause an unexpected process crash. The vulnerability has a CVSS score of 6.5, indicating medium severity.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a use-after-free issue (CWE-416) in Safari and related Apple operating systems. It allows an attacker to cause an unexpected process crash by processing maliciously crafted web content. The issue was fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2 through improved memory management. There are no known exploits in the wild. The CVSS 3.1 vector indicates network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, no confidentiality or integrity impact, but high availability impact.
Potential Impact
The vulnerability can lead to an unexpected process crash, causing denial of service (availability impact). There is no impact on confidentiality or integrity according to the CVSS vector. No known active exploitation has been reported.
Mitigation Recommendations
A fix is available in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. Users and administrators should update to these versions to remediate the vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-44fm-8753-g4f8
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43734"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a83aa80bf8831d539e33034
Added to database: 08/18/2026, 00:42:40 UTC
Last enriched: 08/18/2026, 00:57:35 UTC
Last updated: 08/18/2026, 01:52:14 UTC
Views: 4
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