CVE-2026-20652

HIGH

macOS Tahoe <26.3 - DoS

Title source: llm

Description

The issue was addressed with improved memory handling. This issue is fixed in macOS Tahoe 26.3, iOS 18.7.5 and iPadOS 18.7.5, visionOS 26.3, iOS 26.3 and iPadOS 26.3, Safari 26.3. A remote attacker may be able to cause a denial-of-service.

References (5)

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126346

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126347

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126348

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126353

[Release Notes, Vendor Advisory] https://support.apple.com/en-us/126354

Scores

CVSS v3 7.5

EPSS 0.0015

EPSS Percentile 35.9%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Classification

CWE

CWE-400

Status published

Affected Products (5)

apple/safari < 26.3

apple/ipados < 18.7.5

apple/iphone_os < 18.7.5

apple/macos < 26.3

apple/visionos < 26.3

Timeline

Published Feb 11, 2026

Tracked Since Feb 18, 2026