Buffer overflow in Apple macOS
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
A buffer overflow 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. A local user may be able to read kernel memory.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
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 ·
Apple macOS 14.8.8, 15.7.8, 26.6
97 records Highest priority Priority HIGH 1 HIGH, 39 MEDIUM, 57 LOW
Other records, highest priority first
- TI-2026-28755 Incorrect default permissions in Apple macOSPriority HIGH 69
- TI-2026-46307 Apple iOS and iPadOS: An app may be able to cause unexpected system terminationPriority MEDIUM 50
- TI-2026-46306 Integer overflow in Apple iOS and iPadOSPriority MEDIUM 50
Timeline
- 2026-10-02 Threatist record created from CVE-2026-43681
- 2026-10-03 Alias added: GHSA-8gv4-rrq2-vm98
References
More Apple Macos vulnerabilities
- 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
Sources
- CVE-2026-43681 · CVE Program
- CVE-2026-43681 · NVD
- FIRST EPSS
- GHSA-8gv4-rrq2-vm98 · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences