CVE-2026-39872: Processing maliciously crafted web content may lead to an unexpected process crash in Apple Safari
The issue was addressed with improved memory handling. 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
CVE-2026-39872 is a medium severity vulnerability in Apple Safari where processing maliciously crafted web content can lead to an unexpected process crash due to improper memory handling. The issue is fixed in Safari 26.5.2 and related OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). The vulnerability is associated with CWE-416 (Use After Free) and CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer). There are no known exploits in the wild, and the vendor has addressed the issue with improved memory handling.
Potential Impact
The vulnerability can cause an unexpected process crash in Safari when processing maliciously crafted web content, impacting availability. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available in Safari 26.5.2 and corresponding 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 browsers and operating systems to these versions or later to remediate the vulnerability.
CVE-2026-39872: Processing maliciously crafted web content may lead to an unexpected process crash in Apple Safari
Description
The issue was addressed with improved memory handling. 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
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-39872 is a medium severity vulnerability in Apple Safari where processing maliciously crafted web content can lead to an unexpected process crash due to improper memory handling. The issue is fixed in Safari 26.5.2 and related OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2, tvOS 26.6, visionOS 26.6, watchOS 26.6). The vulnerability is associated with CWE-416 (Use After Free) and CWE-119 (Improper Restriction of Operations within the Bounds of a Memory Buffer). There are no known exploits in the wild, and the vendor has addressed the issue with improved memory handling.
Potential Impact
The vulnerability can cause an unexpected process crash in Safari when processing maliciously crafted web content, impacting availability. There is no impact on confidentiality or integrity. No known exploits are reported in the wild.
Mitigation Recommendations
A fix is available in Safari 26.5.2 and corresponding 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 browsers and operating systems to these versions or later to remediate the vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-04-07T19:58:20.173Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d027e9c7971972c7ab
Added to database: 06/29/2026, 20:21:36 UTC
Last enriched: 07/30/2026, 00:53:31 UTC
Last updated: 08/12/2026, 12:41:09 UTC
Views: 51
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