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. Processing maliciously crafted web content may lead to an unexpected process crash.
AI Analysis
Technical Summary
This vulnerability involves Safari browsers crashing unexpectedly when processing specially crafted web content due to improper memory handling. Apple addressed the issue by improving memory management, releasing fixes in Safari 26.5.2 and corresponding OS versions. No further technical details or exploitation methods are provided.
Potential Impact
An attacker could cause a denial of service by triggering a process crash in Safari through malicious web content. There is no indication of code execution or data compromise. No known exploits are reported in the wild.
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 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. Processing maliciously crafted web content may lead to an unexpected process crash.
CVSS v3.1
Score 6.5medium
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves Safari browsers crashing unexpectedly when processing specially crafted web content due to improper memory handling. Apple addressed the issue by improving memory management, releasing fixes in Safari 26.5.2 and corresponding OS versions. No further technical details or exploitation methods are provided.
Potential Impact
An attacker could cause a denial of service by triggering a process crash in Safari through malicious web content. There is no indication of code execution or data compromise. No known exploits are reported in the wild.
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 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: 06/29/2026, 20:52:30 UTC
Last updated: 06/30/2026, 00:23:28 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.