CVE-2026-84536 Details
Description
An integer underflow was addressed with improved input validation. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. Connecting to a malicious SMB server may lead to unexpected system termination.
An integer underflow vulnerability in the SMB (Server Message Block) implementation of Apple macOS Golden Gate 27, Sequoia 15.8, and Tahoe 26.7 was addressed with improved input validation. This vulnerability could be exploited by connecting to a malicious SMB server, potentially leading to unexpected system termination.
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 Sep 15, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://support.apple.com/en-us/149035 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149042 | [email protected] | Release NotesVendor Advisory |
| https://support.apple.com/en-us/149043 | [email protected] | Release NotesVendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-190 | Integer Overflow or Wraparound | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| apple macos | >= 15.0, < 15.8 >= 26.0, < 26.7 |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 16, 2026 | Initial Analysis | [email protected] |
| Sep 15, 2026 | CVE Modified | CISA-ADP |
| Sep 14, 2026 | New CVE Received | [email protected] |