Out-of-bounds read in Apple macOS may disclose process memory
Key facts
- Attack vector
- Local
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-125 and the CVSS impact.
Summary
Apple macOS versions before 15.8.2, before 26.7.2 and before 27.2 are affected by an out-of-bounds read (CWE-125) that is fixed with improved bounds checking. Processing a maliciously crafted file may disclose process memory, and a local user must get the target to open that file. The record does not report exploitation.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
Description from the CNA
An out-of-bounds read was addressed with improved bounds checking. This issue is fixed in macOS Golden Gate 27.2, macOS Sequoia 15.8.2, macOS Tahoe 26.7.2. Processing a maliciously crafted file may disclose process memory.
Why it matters now
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
Remediation
Apple fixed this in macOS Sequoia 15.8.2, macOS Tahoe 26.7.2 and macOS Golden Gate 27.2.
Written with Claude Haiku 5.5 from the sources below · 2026-11-03
- Fix · CNA macOS (Apple) Fixed in 15.8.2, 26.7.2, 27.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 15.8.2, 26.7.2, 27.2
166 records Highest priority Priority MEDIUM 29 MEDIUM, 137 LOW
Other records, highest priority first
- TI-2026-80879 Apple iOS, macOS and visionOS flaw allows WebContent sandbox escapePriority MEDIUM 51
- TI-2026-80811 Out-of-bounds write in Apple macOS allows system terminationPriority MEDIUM 50
- TI-2026-80633 Buffer overflow in Apple macOS allows remote app crashesPriority MEDIUM 50
Timeline
- 2026-10-26 Threatist record created from CVE-2026-112429
- 2026-10-27 Alias added: GHSA-pwxr-x89m-f78q
- 2026-11-03 CVSS score added · CISA ADP
- 2026-11-03 Weakness changed · CISA ADP
- 2026-11-03 CISA SSVC decision points changed
- 2026-11-03 Weakness changed · NVD
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-2026-112429 · CVE Program
- CVE-2026-112429 · NVD
- FIRST EPSS
- GHSA-pwxr-x89m-f78q · 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