TI-2026-31851 Aliases CVE-2026-43761 GHSA-3292-2mh3-665r

Out-of-bounds write in Apple macOS

LOW 29CWE-787Published 2026-09-14 · Updated 2026-09-15

Key facts

Attack vector: Network
Privileges required: None
User interaction: Required
Attack complexity: Low
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-787 and the CVSS impact.

Summary

An out-of-bounds write issue was addressed with improved bounds checking. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8, macOS Tahoe 26.6. Mounting a malicious disk image may cause unexpected system termination.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00404 34th percentileScored 2026-11-07

Fix Fixed macOS (Apple): 14.8.8, 15.7.8, 26.6

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Apple	macOS	before 14.8.8; before 15.7.8; before 26.6	14.8.8, 15.7.8, 26.6	Patch available	CNA

macOS VendorApple Affected before 14.8.8; before 15.7.8; before 26.6 Fixed in 14.8.8, 15.7.8, 26.6 Patch available CNA

CPE configurations NVD · 1

CPE	Versions	Role	Vendor
cpe:2.3:o:apple:macos::::::::	14.0 to before 14.8.8; 15.0 to before 15.7.8; 26.0 to before 26.6	Vulnerable	Apple

cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 14.0 to before 14.8.8; 15.0 to before 15.7.8; 26.0 to before 26.6 Vulnerable ·Apple

Remediation

Fix · CNA macOS (Apple) Fixed in 14.8.8, 15.7.8, 26.6

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

Release · 2026-09-14
Apple macOS 14.8.8, 15.7.8, 26.6
3 records Highest priority Priority MEDIUM 1 MEDIUM, 2 LOW
Other records, highest priority first
- TI-2026-31904 Out-of-bounds write in Apple macOSPriority MEDIUM 41
- TI-2026-23115 Use after free in Apple macOSPriority LOW 24
Show all 3 records →

Timeline

2026-10-02 Threatist record created from CVE-2026-43761
2026-10-03 Alias added: GHSA-3292-2mh3-665r

References

Advisory 3

TI-2026-46583 Improper authentication in Apple macOS KEVCVSS 3.1CRITICAL 9.8
TI-2025-28008 Out-of-bounds write in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0
TI-2025-22441 Apple iOS and iPadOS: An attacker with arbitrary read and write capability may be able to… KEVCVSS 3.1CRITICAL 9.8
TI-2025-22440 Memory corruption in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 9.8
TI-2025-17951 Out-of-bounds write in Apple Safari KEVCVSS 3.1CRITICAL 10.0
TI-2025-17847 Use after free in Apple iOS and iPadOS KEVCVSS 3.1CRITICAL 10.0

See all 3490 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences