CVE-2026-43715: Processing maliciously crafted web content may lead to memory corruption in Apple Safari
A use-after-free issue was addressed with improved memory management. 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 memory corruption.
AI Analysis
Technical Summary
This vulnerability involves a use-after-free condition in Apple Safari's handling of web content, which may result in memory corruption. Apple fixed the issue by improving memory management in Safari 26.5.2 and corresponding OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2). The vulnerability is publicly disclosed but lacks a CVSS score and no known exploitation has been reported.
Potential Impact
Successful exploitation could lead to memory corruption, potentially allowing an attacker to cause a denial of service or execute arbitrary code within the context of the Safari browser. However, no known exploits are currently reported in the wild.
Mitigation Recommendations
Apply the official update to Safari 26.5.2 or later, as well as iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 to remediate this vulnerability. These versions contain the fix for the use-after-free issue. No other mitigation steps are indicated.
CVE-2026-43715: Processing maliciously crafted web content may lead to memory corruption in Apple Safari
Description
A use-after-free issue was addressed with improved memory management. 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 memory corruption.
CVSS v3.1
Score 8.8high
Affected software
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in Apple Safari's handling of web content, which may result in memory corruption. Apple fixed the issue by improving memory management in Safari 26.5.2 and corresponding OS versions (iOS 26.5.2, iPadOS 26.5.2, macOS Tahoe 26.5.2). The vulnerability is publicly disclosed but lacks a CVSS score and no known exploitation has been reported.
Potential Impact
Successful exploitation could lead to memory corruption, potentially allowing an attacker to cause a denial of service or execute arbitrary code within the context of the Safari browser. However, no known exploits are currently reported in the wild.
Mitigation Recommendations
Apply the official update to Safari 26.5.2 or later, as well as iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 to remediate this vulnerability. These versions contain the fix for the use-after-free issue. No other mitigation steps are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.644Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a42d3d327e9c7971972d065
Added to database: 06/29/2026, 20:21:39 UTC
Last enriched: 06/29/2026, 20:37:59 UTC
Last updated: 06/30/2026, 01:08:50 UTC
Views: 4
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.