CVE-2026-39877
Received Received - Intake

Memory Corruption in macOS Kernel

Publication date: 2026-07-27

Last updated on: 2026-07-27

Assigner: Apple Inc.

Description
A memory corruption issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.8, macOS Sonoma 14.8.8. An app may be able to disclose kernel memory.

CVSS Scores

EPSS Scores

Probability:
Percentile:

Meta Information

Published
2026-07-27
Last Modified
2026-07-27
Generated
2026-07-28
AI Q&A
2026-07-28
EPSS Evaluated
N/A
NVD
CVE-2026-39877
EUVD
EUVD-2026-49520

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
apple macos_sequoia 15.7.8
apple macos_sonoma 14.8.8

Helpful Resources

Exploitability

CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-UNKNOWN

Attack-Flow Graph

AI Quick Actions

Instant insights powered by AI
Executive Summary

This is a memory corruption vulnerability where an app could potentially access and disclose kernel memory due to improper memory handling. It was fixed in macOS Sequoia 15.7.8 and macOS Sonoma 14.8.8.

Impact Analysis

An attacker could exploit this to read sensitive kernel memory, potentially exposing passwords, encryption keys, or other confidential data stored in memory.

Mitigation Strategies

Update to the latest patched versions of macOS Sequoia 15.7.8 or macOS Sonoma 14.8.8 to address the memory corruption issue.

Chat Assistant

Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-39877. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70

EPSS Chart