An out-of-bounds write issue was addressed with improved bounds checking. (CVE-2026-84515)
An out-of-bounds write vulnerability in macOS was addressed by improved bounds checking. The flaw could allow kernel memory corruption when connecting to a malicious SMB server. The issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
CVE-2026-84515 is an out-of-bounds write vulnerability in macOS that could lead to kernel memory corruption. The vulnerability occurs when connecting to a malicious SMB server. Apple fixed this issue by improving bounds checking in the affected components. The fix is included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Successful exploitation of this vulnerability may result in kernel memory corruption, which could potentially lead to system instability or privilege escalation. However, there are no known exploits in the wild at this time.
Mitigation Recommendations
Apply the official updates provided by Apple: macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. These versions include the fix that improves bounds checking and addresses the out-of-bounds write issue. No additional mitigation steps are indicated by the vendor advisory.
An out-of-bounds write issue was addressed with improved bounds checking. (CVE-2026-84515)
Description
An out-of-bounds write vulnerability in macOS was addressed by improved bounds checking. The flaw could allow kernel memory corruption when connecting to a malicious SMB server. The issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84515 is an out-of-bounds write vulnerability in macOS that could lead to kernel memory corruption. The vulnerability occurs when connecting to a malicious SMB server. Apple fixed this issue by improving bounds checking in the affected components. The fix is included in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Successful exploitation of this vulnerability may result in kernel memory corruption, which could potentially lead to system instability or privilege escalation. However, there are no known exploits in the wild at this time.
Mitigation Recommendations
Apply the official updates provided by Apple: macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. These versions include the fix that improves bounds checking and addresses the out-of-bounds write issue. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-7g7w-689w-qx47
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-84515"]
- State
- PUBLISHED
Threat ID: 6aa8a1a555bf5e2cf5f3d4e8
Added to database: 09/15/2026, 01:38:45 UTC
Last enriched: 09/15/2026, 01:51:20 UTC
Last updated: 09/15/2026, 03:01:23 UTC
Views: 2
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