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macOS EUVDEUVD-2026-49541

| CVE-2026-28896 HIGH
Buffer Overflow (CWE-119)
2026-07-27 apple GHSA-f7hf-r92j-x7jv
7.7
CVSS 3.1 · Vendor: apple
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Severity by source

Vendor (apple) PRIMARY
7.7 HIGH
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
vuln.today AI
7.7 HIGH

Local access, low complexity, no privileges required; high confidentiality impact (kernel memory read) and high availability impact (system crash).

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (apple).

CVSS VectorVendor: apple

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
High

Lifecycle Timeline

5
Analysis Generated
Jul 28, 2026 - 18:33 vuln.today
CVSS changed
Jul 28, 2026 - 16:22 NVD
7.7 (HIGH)
Patch available
Jul 27, 2026 - 21:17 EUVD
CVE Published
Jul 27, 2026 - 20:13 cve.org
HIGH 7.7
CVE Published
Jul 27, 2026 - 20:13 cve.org
UNKNOWN (no severity yet)

DescriptionCVE.org

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An attacker may be able to cause unexpected system termination or read kernel memory.

AnalysisAI

Local kernel memory disclosure and denial-of-service vulnerability in macOS 14.x and 15.x prior to patches. An unauthenticated attacker with local access can trigger a memory handling flaw to read kernel memory or cause unexpected system termination. No active exploitation or public exploit code is known; EPSS score is very low (0.14%).

Technical ContextAI

The vulnerability involves improper memory handling (CWE-119) in the macOS kernel, leading to a buffer overflow condition. This allows an attacker with local code execution to leak sensitive kernel memory contents or destabilize the system, causing a crash. The CPE data indicates all macOS versions prior to the fixed releases are affected.

RemediationAI

Apply the vendor patches by upgrading to macOS Sonoma 14.8.8 or macOS Sequoia 15.7.8. No workarounds are provided. Limiting local access and employing the principle of least privilege can reduce risk until patching is completed.

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EUVD-2026-49541 vulnerability details – vuln.today

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