CVE-2026-64767 - Vulnerability Details - OpenCVE

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 remote attacker may be able to cause unexpected system termination or corrupt kernel memory.

No CVSS v4.0

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact High

Integrity Impact High

Availability Impact High

User Interaction None

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

Exploitation none

Automatable yes

Technical Impact total

Vendors	Products
Apple	Macos

No data.

No data.

References

Link	Providers
https://support.apple.com/en-us/128067
https://support.apple.com/en-us/128071
https://support.apple.com/en-us/128072

History

Thu, 30 Jul 2026 01:15:00 +0000

Type	Values Removed	Values Added
Title		Kernel Buffer Overflow Leading to System Termination in macOS
Weaknesses		CWE-119

Tue, 28 Jul 2026 16:15:00 +0000

Type	Values Removed	Values Added
Weaknesses		CWE-120
Metrics		cvssV3_1 `{'score': 9.8, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H'}` ssvc `{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}`

Tue, 28 Jul 2026 03:45:00 +0000

Type	Values Removed	Values Added
First Time appeared		Apple Apple macos
Vendors & Products		Apple Apple macos

Mon, 27 Jul 2026 20:30:00 +0000

Type	Values Removed	Values Added
Description		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 remote attacker may be able to cause unexpected system termination or corrupt kernel memory.
References		https://support.apple.com/en-us/128067 https://support.apple.com/en-us/128071 https://support.apple.com/en-us/128072

MITRE

Status: PUBLISHED

Assigner: apple

Published: 2026-07-27T20:13:51.882Z

Updated: 2026-07-28T14:02:09.025Z

Reserved: 2026-07-20T18:10:43.924Z

Link: CVE-2026-64767

Vulnrichment

Updated: 2026-07-28T14:01:57.605Z

NVD

No data.

Redhat

No data.

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64767", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "state": "PUBLISHED", "assignerShortName": "apple", "dateReserved": "2026-07-20T18:10:43.924Z", "datePublished": "2026-07-27T20:13:51.882Z", "dateUpdated": "2026-07-28T14:02:09.025Z"}, "containers": {"cna": {"problemTypes": [{"descriptions": [{"lang": "en", "description": "A remote attacker may be able to cause unexpected system termination or corrupt kernel memory"}]}], "affected": [{"vendor": "Apple", "product": "macOS", "versions": [{"version": "0", "status": "affected", "lessThan": "14.8.8", "versionType": "custom"}, {"version": "0", "status": "affected", "lessThan": "15.7.8", "versionType": "custom"}, {"version": "0", "status": "affected", "lessThan": "26.6", "versionType": "custom"}]}], "descriptions": [{"lang": "en", "value": "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 remote attacker may be able to cause unexpected system termination or corrupt kernel memory."}], "references": [{"url": "https://support.apple.com/en-us/128067"}, {"url": "https://support.apple.com/en-us/128071"}, {"url": "https://support.apple.com/en-us/128072"}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-07-27T20:13:51.882Z"}}, "adp": [{"problemTypes": [{"descriptions": [{"type": "CWE", "cweId": "CWE-120", "lang": "en", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-07-28T14:02:03.579422Z", "id": "CVE-2026-64767", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-07-28T14:02:09.025Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"affected": [{"vendor": "Apple", "product": "macOS", "versions": [{"status": "affected", "version": "0", "lessThan": "14.8.8", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "15.7.8", "versionType": "custom"}, {"status": "affected", "version": "0", "lessThan": "26.6", "versionType": "custom"}]}], "references": [{"url": "https://support.apple.com/en-us/128067"}, {"url": "https://support.apple.com/en-us/128071"}, {"url": "https://support.apple.com/en-us/128072"}], "descriptions": [{"lang": "en", "value": "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 remote attacker may be able to cause unexpected system termination or corrupt kernel memory."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "A remote attacker may be able to cause unexpected system termination or corrupt kernel memory"}]}], "providerMetadata": {"orgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "shortName": "apple", "dateUpdated": "2026-07-27T20:13:51.882Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 9.8, "attackVector": "NETWORK", "baseSeverity": "CRITICAL", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "NONE", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-64767", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "yes"}, {"Technical Impact": "total"}], "version": "2.0.3", "timestamp": "2026-07-28T14:02:03.579422Z"}}}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-120", "description": "CWE-120 Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')"}]}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-07-28T14:01:57.605Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-64767", "state": "PUBLISHED", "dateUpdated": "2026-07-27T20:13:51.882Z", "dateReserved": "2026-07-20T18:10:43.924Z", "assignerOrgId": "286789f9-fbc2-4510-9f9a-43facdede74c", "datePublished": "2026-07-27T20:13:51.882Z", "assignerShortName": "apple"}, "dataVersion": "5.2"}