CVE-2026-84590 Details
Description
An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. A remote attacker may be able to cause unexpected app termination or heap corruption.
A vulnerability allowing for out-of-bounds write operations has been identified in the Screen Sharing server component of macOS Golden Gate 27.2, Sequoia 15.8.2, and Tahoe 26.7.2. This vulnerability could be exploited by a remote attacker, leading to unexpected termination of the application or corruption of heap memory.
Users can update to macOS Golden Gate 27.2, macOS Sequoia 15.8.2, or macOS Tahoe 26.7.2 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/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 |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-787 | Out-of-bounds Write | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple macos | < 15.8.2 >= 26.0, < 26.7.2 >= 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] |