CVE-2026-39870

Received Received - Intake

Memory Corruption in macOS Image Processing

Publication date: 2026-05-11

Last updated on: 2026-05-11

Assigner: Apple Inc.

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, macOS Tahoe 26.5. Processing a maliciously crafted image may corrupt process memory.

CVSS Scores

EPSS Scores

Probability:
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Meta Information

Published

2026-05-11

Last Modified

2026-05-11

Generated

2026-07-11

AI Q&A

2026-05-12

EPSS Evaluated

2026-07-10

NVD

CVE-2026-39870

Affected Vendors & Products

Vendor	Product	Version / Range
apple	macos_sequoia	to 15.7.7 (inc)
apple	macos_sonoma	to 14.8.7 (inc)
apple	macos_tahoe	to 26.5 (inc)

Helpful Resources

Exploitability

CWE

KEV

CWE ID	Description
CWE-UNKNOWN

Attack-Flow Graph

Executive Summary

This vulnerability involves improper memory handling when processing a maliciously crafted image on certain macOS versions. Specifically, it can cause corruption of process memory.

The issue has been addressed and fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, and macOS Tahoe 26.5 by improving memory handling.

Impact Analysis

Processing a maliciously crafted image could corrupt process memory, which may lead to application crashes, unexpected behavior, or potentially allow an attacker to execute arbitrary code or escalate privileges.

Mitigation Strategies

The vulnerability is fixed in macOS Sequoia 15.7.7, macOS Sonoma 14.8.7, and macOS Tahoe 26.5. To mitigate this vulnerability, you should update your system to one of these versions or later.

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