CVE-2026-86973 Details
Description
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in Safari 27.2, iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2. Processing maliciously crafted web content may lead to an unexpected process crash.
A vulnerability in WebKit, the engine used by Safari, allows for an out-of-bounds read, which can be exploited by processing maliciously crafted web content. This issue is present in Safari 27.2, iOS 27.2 and iPadOS 27.2, as well as macOS Golden Gate 27.2. The vulnerability was addressed with improved bounds checking, but not before it could lead to an unexpected process crash.
Users can update to Safari 27.2, iOS 27.2, iPadOS 27.2, or macOS Golden Gate 27.2 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 Nov 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.apple.com/en-us/149227 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149230 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149521 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149527 | [email protected] | Release NotesVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-125 | Out-of-bounds Read | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple safari | < 27.2 |
CPE
Remediation
| |
| apple ipados | < 26.7.2 >= 27.0, < 27.2 |
CPE
Remediation
| |
| apple iphone os | < 26.7.2 >= 27.0, < 27.2 |
CPE
Remediation
| |
| apple macos | >= 27.0, < 27.2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | Initial Analysis | [email protected] |
| Nov 4, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |