PT-2025-51014 · Apple · Macos Sequoia+8

Published 2025-11-03 · Updated 2026-03-20 · CVE-2025-43520

Positive Technologies · (AI Summary)

CVSS v3.1

7.1

High

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

Name of the Vulnerable Software and Affected Versions watchOS versions prior to 26.1 iOS versions prior to 18.7.2 iPadOS versions prior to 18.7.2 macOS Tahoe versions prior to 26.1 visionOS versions prior to 26.1 tvOS versions prior to 26.1 macOS Sonoma versions prior to 14.8.2 macOS Sequoia versions prior to 15.7.2 iOS versions prior to 26.1 iPadOS versions prior to 26.1

Description A memory corruption issue exists due to improper memory handling. Exploitation of this issue by a malicious application may lead to unexpected system termination or allow writing to kernel memory.

Recommendations Update watchOS to version 26.1. Update iOS to version 18.7.2. Update iPadOS to version 18.7.2. Update macOS Tahoe to version 26.1. Update visionOS to version 26.1. Update tvOS to version 26.1. Update macOS Sonoma to version 14.8.2. Update macOS Sequoia to version 15.7.2. Update iOS to version 26.1. Update iPadOS to version 26.1.

Fix

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-120

Related Identifiers

CVE-2025-43520

Affected Products

Apple Macos

Ios

Ipados

Macos Sequoia

Macos Sonoma

Macos Tahoe

Tvos

Visionos

Watchos

References · 18

• https://nvd.nist.gov/vuln/detail/CVE-2025-43520 · Security Note
• https://osv.dev/vulnerability/CVE-2025-43520 · Vendor Advisory
• https://support.apple.com/en-us/125633 · Vendor Advisory, Security Note
• https://t.me/CVEtracker/39654 · Telegram Post
• https://twitter.com/CVEnew/status/1999876821068689514 · Twitter Post
• https://t.me/true_secator/8007 · Telegram Post
• https://support.apple.com/en-us/125632 · Vendor Advisory, Security Note
• https://cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520 · Note
• https://support.apple.com/en-us/125635 · Vendor Advisory, Security Note
• https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain · Note
• https://support.apple.com/en-us/125634 · Vendor Advisory, Security Note
• https://twitter.com/VulmonFeeds/status/1999716230161134075 · Twitter Post
• https://support.apple.com/en-us/125638 · Vendor Advisory, Security Note
• https://support.apple.com/en-us/125636 · Vendor Advisory, Security Note
• https://support.apple.com/en-us/125639 · Vendor Advisory, Security Note