An out-of-bounds write issue was addressed with improved input validation. (CVE-2026-43745)
CVE-2026-43745 is an out-of-bounds write vulnerability in Safari and related Apple operating systems that was addressed by improved input validation. The flaw could cause Safari to crash when processing maliciously crafted web content. The issue is fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.
AI Analysis
Technical Summary
This vulnerability, identified as CVE-2026-43745 and classified under CWE-787 (Out-of-bounds Write), involves an out-of-bounds write condition in Safari and Apple OS platforms. The root cause was insufficient input validation, which could be triggered by maliciously crafted web content leading to an unexpected crash of the Safari browser. The issue has been resolved by Apple through improved input validation in Safari 26.5.2 and corresponding OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2).
Potential Impact
Successful exploitation of this vulnerability may cause an unexpected crash of the Safari browser, resulting in denial of service. There is no indication of confidentiality or integrity impact. The CVSS v3.1 score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability.
Mitigation Recommendations
Apply the official updates from Apple to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2 to remediate this vulnerability. These updates include improved input validation that addresses the out-of-bounds write issue. No additional mitigation is indicated.
An out-of-bounds write issue was addressed with improved input validation. (CVE-2026-43745)
Description
CVE-2026-43745 is an out-of-bounds write vulnerability in Safari and related Apple operating systems that was addressed by improved input validation. The flaw could cause Safari to crash when processing maliciously crafted web content. The issue is fixed in Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2.
CVSS v3.1
Score 6.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, identified as CVE-2026-43745 and classified under CWE-787 (Out-of-bounds Write), involves an out-of-bounds write condition in Safari and Apple OS platforms. The root cause was insufficient input validation, which could be triggered by maliciously crafted web content leading to an unexpected crash of the Safari browser. The issue has been resolved by Apple through improved input validation in Safari 26.5.2 and corresponding OS updates (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2).
Potential Impact
Successful exploitation of this vulnerability may cause an unexpected crash of the Safari browser, resulting in denial of service. There is no indication of confidentiality or integrity impact. The CVSS v3.1 score is 6.5 (medium severity), reflecting network attack vector, low attack complexity, no privileges required, user interaction required, unchanged scope, and impact limited to availability.
Mitigation Recommendations
Apply the official updates from Apple to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, and macOS Tahoe 26.5.2 to remediate this vulnerability. These updates include improved input validation that addresses the out-of-bounds write issue. No additional mitigation is indicated.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-jwf6-8r5m-99c4
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-43745"]
- Ecosystems
- []
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
Threat ID: 6a83aa80bf8831d539e33007
Added to database: 08/18/2026, 00:42:40 UTC
Last enriched: 08/18/2026, 00:57:50 UTC
Last updated: 08/18/2026, 01:52:28 UTC
Views: 3
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