CVE-2026-84565: Processing a maliciously crafted disk image may lead to unexpected app termination in Apple macOS
CVE-2026-84565 is a vulnerability in Apple macOS where processing a maliciously crafted disk image may cause unexpected application termination. The issue was due to an out-of-bounds read, which has been fixed by improved bounds checking in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
AI Analysis
Technical Summary
This vulnerability involves an out-of-bounds read triggered by processing a specially crafted disk image on Apple macOS. The flaw could cause affected applications to terminate unexpectedly. Apple addressed the issue by implementing improved bounds checking. 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 lead to unexpected termination of applications processing malicious disk images. There is no indication of code execution or data corruption beyond app termination. No known exploits are reported 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 resolves the vulnerability. Patch status is confirmed by the vendor advisory.
CVE-2026-84565: Processing a maliciously crafted disk image may lead to unexpected app termination in Apple macOS
Description
CVE-2026-84565 is a vulnerability in Apple macOS where processing a maliciously crafted disk image may cause unexpected application termination. The issue was due to an out-of-bounds read, which has been fixed by improved bounds checking in macOS Golden Gate 27, macOS Sequoia 15.8, and macOS Tahoe 26.7.
Affected software
Apple
macOS
pkg:github/apple/macos-sequoiapkg:github/apple/macos-golden-gateRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves an out-of-bounds read triggered by processing a specially crafted disk image on Apple macOS. The flaw could cause affected applications to terminate unexpectedly. Apple addressed the issue by implementing improved bounds checking. 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 lead to unexpected termination of applications processing malicious disk images. There is no indication of code execution or data corruption beyond app termination. No known exploits are reported 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 resolves the vulnerability. Patch status is confirmed by the vendor advisory.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apple
- Date Reserved
- 2026-09-01T21:13:17.754Z
- State
- PUBLISHED
Threat ID: 6aa8610b55bf5e2cf59d2bf2
Added to database: 09/14/2026, 21:03:07 UTC
Last enriched: 09/14/2026, 22:33:24 UTC
Last updated: 09/15/2026, 04:01:23 UTC
Views: 3
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