A buffer overflow was addressed with improved bounds checking. (CVE-2026-64705)
CVE-2026-64705 is a medium severity buffer overflow vulnerability in macOS that was addressed by improved bounds checking. The flaw could allow a local app with low privileges to cause unexpected system termination or write to kernel memory, impacting system stability. The issue is fixed in macOS Sequoia 15.7.7 and macOS Sonoma 14.8.7.
AI Analysis
Technical Summary
This vulnerability is a buffer overflow caused by insufficient bounds checking, which could be exploited by a local application with low privileges to cause a denial of service (system crash) or potentially write to kernel memory. The vulnerability affects macOS prior to versions Sequoia 15.7.7 and Sonoma 14.8.7, where the issue has been fixed by improved bounds checking mechanisms.
Potential Impact
An attacker with local low privilege access may cause unexpected system termination (denial of service) or write to kernel memory, which could affect system stability and reliability. There is no indication of confidentiality or integrity impact. No known exploits in the wild have been reported.
Mitigation Recommendations
Apply the official patches by upgrading to macOS Sequoia 15.7.7 or macOS Sonoma 14.8.7, where the vulnerability has been fixed with improved bounds checking. No additional mitigations are specified.
A buffer overflow was addressed with improved bounds checking. (CVE-2026-64705)
Description
CVE-2026-64705 is a medium severity buffer overflow vulnerability in macOS that was addressed by improved bounds checking. The flaw could allow a local app with low privileges to cause unexpected system termination or write to kernel memory, impacting system stability. The issue is fixed in macOS Sequoia 15.7.7 and macOS Sonoma 14.8.7.
CVSS v3.1
Score 5.5medium
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability is a buffer overflow caused by insufficient bounds checking, which could be exploited by a local application with low privileges to cause a denial of service (system crash) or potentially write to kernel memory. The vulnerability affects macOS prior to versions Sequoia 15.7.7 and Sonoma 14.8.7, where the issue has been fixed by improved bounds checking mechanisms.
Potential Impact
An attacker with local low privilege access may cause unexpected system termination (denial of service) or write to kernel memory, which could affect system stability and reliability. There is no indication of confidentiality or integrity impact. No known exploits in the wild have been reported.
Mitigation Recommendations
Apply the official patches by upgrading to macOS Sequoia 15.7.7 or macOS Sonoma 14.8.7, where the vulnerability has been fixed with improved bounds checking. No additional mitigations are specified.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-4pgp-p442-544g
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-64705"]
- Database Specific Severity
- MODERATE
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aa8a1d455bf5e2cf5f3e9a4
Added to database: 09/15/2026, 01:39:32 UTC
Last enriched: 09/15/2026, 02:04:57 UTC
Last updated: 09/15/2026, 06:34:43 UTC
Views: 6
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