An out-of-bounds read was addressed with improved bounds checking. (CVE-2026-84549)
An out-of-bounds read vulnerability in macOS was addressed by improved bounds checking. The flaw could allow a malicious NFS server to cause unexpected system termination or corrupt kernel memory. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
CVE-2026-84549 describes an out-of-bounds read vulnerability in macOS that occurs when connecting to a malicious NFS server. The vulnerability allows reading memory outside of intended bounds, which can lead to system crashes or kernel memory corruption. Apple fixed this issue by improving bounds checking in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Exploitation of this vulnerability may cause unexpected system termination (crashes) or corruption of kernel memory, potentially affecting system stability and security. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Apply the official fixes by updating to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7. These versions include improved bounds checking that addresses the vulnerability.
An out-of-bounds read was addressed with improved bounds checking. (CVE-2026-84549)
Description
An out-of-bounds read vulnerability in macOS was addressed by improved bounds checking. The flaw could allow a malicious NFS server to cause unexpected system termination or corrupt kernel memory. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-84549 describes an out-of-bounds read vulnerability in macOS that occurs when connecting to a malicious NFS server. The vulnerability allows reading memory outside of intended bounds, which can lead to system crashes or kernel memory corruption. Apple fixed this issue by improving bounds checking in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Potential Impact
Exploitation of this vulnerability may cause unexpected system termination (crashes) or corruption of kernel memory, potentially affecting system stability and security. There is no indication of active exploitation in the wild.
Mitigation Recommendations
Apply the official fixes by updating to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7. These versions include improved bounds checking that addresses the vulnerability.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-g93j-m553-jp8w
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-84549"]
- State
- PUBLISHED
Threat ID: 6aa8a19d55bf5e2cf5f3d4b8
Added to database: 09/15/2026, 01:38:37 UTC
Last enriched: 09/15/2026, 01:49:15 UTC
Last updated: 09/15/2026, 03:01:23 UTC
Views: 3
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