A use-after-free issue was addressed with improved memory management. (CVE-2026-43717)
CVE-2026-43717 is a use-after-free vulnerability in Safari and related Apple operating systems that could cause an unexpected browser crash when processing malicious web content. The issue was addressed by improved memory management and fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. The vulnerability has a CVSS score of 6.5, indicating a medium severity impact primarily affecting availability.
AI Analysis
Technical Summary
This vulnerability (CVE-2026-43717) is a use-after-free flaw (CWE-416) in Safari and Apple OS platforms that can be triggered by processing specially crafted web content, leading to an unexpected crash of the Safari browser. The flaw was mitigated by improved memory management in the fixed versions Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. The CVSS 3.1 vector indicates the attack requires network access, no privileges, user interaction, and impacts availability without confidentiality or integrity loss.
Potential Impact
Exploitation of this vulnerability may cause an unexpected crash of the Safari browser, resulting in denial of service (availability impact). There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Apply the official patches by updating to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 as these versions include the fix through improved memory management. No other mitigation is indicated.
A use-after-free issue was addressed with improved memory management. (CVE-2026-43717)
Description
CVE-2026-43717 is a use-after-free vulnerability in Safari and related Apple operating systems that could cause an unexpected browser crash when processing malicious web content. The issue was addressed by improved memory management and fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. The vulnerability has a CVSS score of 6.5, indicating a medium severity impact primarily affecting availability.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability (CVE-2026-43717) is a use-after-free flaw (CWE-416) in Safari and Apple OS platforms that can be triggered by processing specially crafted web content, leading to an unexpected crash of the Safari browser. The flaw was mitigated by improved memory management in the fixed versions Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2. The CVSS 3.1 vector indicates the attack requires network access, no privileges, user interaction, and impacts availability without confidentiality or integrity loss.
Potential Impact
Exploitation of this vulnerability may cause an unexpected crash of the Safari browser, resulting in denial of service (availability impact). There is no indication of confidentiality or integrity compromise. No known exploits are reported in the wild.
Mitigation Recommendations
Apply the official patches by updating to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 as these versions include the fix through improved memory management. No other mitigation is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-686m-qmpj-pqxf
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43717"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a83aa84bf8831d539e33989
Added to database: 08/18/2026, 00:42:44 UTC
Last enriched: 08/18/2026, 00:57:18 UTC
Last updated: 08/18/2026, 01:01:12 UTC
Views: 3
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