CVE-2026-43718 Details
Description
A stack overflow was addressed with improved input validation. 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 Safari crash.
A stack overflow vulnerability has been identified in the WebRTC component of Safari, iOS, iPadOS, and macOS Tahoe, all in version 26.5.2. This vulnerability arises from insufficient input validation, which can be exploited by processing maliciously crafted web content, leading to an unexpected crash of the Safari browser.
Users can update to Safari 26.5.2, iOS 26.5.2, iPadOS 26.5.2, or macOS Tahoe 26.5.2 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Jun 29, 2026References to Advisories, Solutions, and Tools
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Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-121 | Stack-based Buffer Overflow | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple safari | < 26.5.2 |
CPE
Remediation
| |
| apple ipados | < 26.5.2 |
CPE
Remediation
| |
| apple iphone os | < 26.5.2 |
CPE
Remediation
| |
| apple macos | >= 26.0, < 26.5.2 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 27, 2026 | CVE Modified | [email protected] |
| Jun 30, 2026 | Initial Analysis | [email protected] |
| Jun 29, 2026 | CVE Modified | CISA-ADP |
| Jun 29, 2026 | New CVE Received | [email protected] |