CVE-2026-86991 Details
Description
A buffer overflow was addressed with improved bounds checking. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.2, iOS 27.2 and iPadOS 27.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2, visionOS 27.2. Processing a maliciously crafted file may lead to unexpected process termination.
A buffer overflow vulnerability has been identified in various Apple products, including iOS, iPadOS, macOS Golden Gate, macOS Sequoia, and visionOS. This vulnerability was addressed with improved bounds checking. However, processing a maliciously crafted file could still lead to unexpected termination of the affected process.
Users can update to iOS 26.7.2, iPadOS 26.7.2, macOS Golden Gate 27.2, macOS Sequoia 15.8.2, or visionOS 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 3, 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/149522 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149523 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149526 | [email protected] | Release NotesVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-120 | Buffer Copy without Checking Size of Input ('Classic Buffer Overflow') | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| 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 | >= 15.0, < 15.8.2 >= 26.0, < 26.7.2 >= 27.0, < 27.2 |
CPE
Remediation
| |
| apple visionos | < 27.2 |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Nov 4, 2026 | Initial Analysis | [email protected] |
| Nov 3, 2026 | CVE Modified | CISA-ADP |
| Oct 26, 2026 | New CVE Received | [email protected] |