CVE-2026-43683: An app may be able to cause unexpected process termination or disclose process memory in Apple macOS
CVE-2026-43683 is a vulnerability in Apple macOS where an out-of-bounds read could allow an app to cause unexpected process termination or disclose process memory. This issue has been fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. The vulnerability arises from insufficient bounds checking, which has now been improved in these fixed versions.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read in Apple macOS that could be exploited by an application to cause unexpected termination of processes or to disclose process memory contents. The root cause was insufficient bounds checking, which has been addressed in the specified fixed versions of macOS Golden Gate, Sequoia, and Tahoe. The issue is publicly known and published as CVE-2026-43683 but does not have an assigned CVSS score. There are no known exploits in the wild at this time.
Potential Impact
An attacker controlling an app could cause unexpected termination of processes or potentially access sensitive process memory, which may lead to information disclosure. This could impact system stability and confidentiality of process data on affected macOS versions prior to the fixed releases.
Mitigation Recommendations
Apply the official fixes by upgrading to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 or later. These versions include improved bounds checking that resolves the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
CVE-2026-43683: An app may be able to cause unexpected process termination or disclose process memory in Apple macOS
Description
CVE-2026-43683 is a vulnerability in Apple macOS where an out-of-bounds read could allow an app to cause unexpected process termination or disclose process memory. This issue has been fixed in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7. The vulnerability arises from insufficient bounds checking, which has now been improved in these fixed versions.
Affected software
Apple
macOS
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read in Apple macOS that could be exploited by an application to cause unexpected termination of processes or to disclose process memory contents. The root cause was insufficient bounds checking, which has been addressed in the specified fixed versions of macOS Golden Gate, Sequoia, and Tahoe. The issue is publicly known and published as CVE-2026-43683 but does not have an assigned CVSS score. There are no known exploits in the wild at this time.
Potential Impact
An attacker controlling an app could cause unexpected termination of processes or potentially access sensitive process memory, which may lead to information disclosure. This could impact system stability and confidentiality of process data on affected macOS versions prior to the fixed releases.
Mitigation Recommendations
Apply the official fixes by upgrading to macOS Golden Gate 27, macOS Sequoia 15.8, or macOS Tahoe 26.7 or later. These versions include improved bounds checking that resolves the vulnerability. No additional mitigation steps are indicated by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-05-01T22:46:21.641Z
- State
- PUBLISHED
Threat ID: 6aa860f255bf5e2cf59d21fe
Added to database: 09/14/2026, 21:02:42 UTC
Last enriched: 09/14/2026, 22:23:02 UTC
Last updated: 09/15/2026, 05:01:23 UTC
Views: 3
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