Memory handling flaw in Apple macOS lets apps corrupt kernel memory
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-119 and the CVSS impact.
Summary
Apple macOS versions before 27.2 contain a memory buffer bounds flaw (CWE-119). A local user with low privileges can run an app that causes unexpected system termination or corrupts kernel memory.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
Description from the CNA
The issue was addressed with improved memory handling. This issue is fixed in macOS Golden Gate 27.2. An app may be able to cause unexpected system termination or corrupt 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
Update Apple macOS to version 27.2, the fixed version listed for this issue.
Written with Claude Haiku 5.5 from the sources below · 2026-11-04
- Fix · CNA macOS (Apple) Fixed in 27.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apple macOS 27.2
78 records Highest priority Priority MEDIUM 23 MEDIUM, 55 LOW
Other records, highest priority first
- TI-2026-80671 Sandbox escape in Apple Safari and other Apple platformsPriority MEDIUM 50
- TI-2026-80835 Out-of-bounds read in Apple iOS, iPadOS and macOS may leak memoryPriority MEDIUM 42
- TI-2026-80618 Memory corruption in Apple platforms via crafted video filePriority MEDIUM 42
Timeline
- 2026-10-26 Threatist record created from CVE-2026-113934
- 2026-10-27 Alias added: GHSA-xmp5-xgrg-f273
- 2026-11-02 CVSS score added · NVD
- 2026-11-04 CVSS score added · CISA ADP
- 2026-11-04 Weakness changed · CISA ADP
- 2026-11-04 CISA SSVC decision points changed
References
Advisory 1
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-2026-113934 · CVE Program
- CVE-2026-113934 · NVD
- FIRST EPSS
- GHSA-xmp5-xgrg-f273 · GitHub Advisory Database · CC BY 4.0
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