CVE-2025-43520

MEDIUMCVSS 5.5Known Exploited

CISA Known Exploited Vulnerability

https://support.apple.com/en-us/125632 ; https://support.apple.com/en-us/125633 ; https://support.apple.com/en-us/125634 ; https://support.apple.com/en-us/125635 ; https://support.apple.com/en-us/125636 ; https://support.apple.com/en-us/125637 ; https://support.apple.com/en-us/125638 ; https://support.apple.com/en-us/125639 ; https://nvd.nist.gov/vuln/detail/CVE-2025-43520

Remediation deadline: April 3, 2026

Description

Apple watchOS, iOS, iPadOS, macOS, visionOS, and tvOS contain a classic buffer overflow vulnerability which could allow a malicious application to cause unexpected system termination or write kernel memory.

Timeline

Published:December 12th, 2025 9:15 PM

Last modified:October 7th, 2026 11:10 AM

Added to KEV:March 20th, 2026

CVSS Scoring

CVSS v3: 5.5 (MEDIUM)

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

Affected Software

From NVD CPE configuration data

Vendors

apple

Products

ipadosiphone_osmacostvosvisionoswatchos

Weaknesses (CWE)

CWE-120

References & Reports

Advisories, patches, and third-party reports

Source: NIST NVD · Data may lag official sources by up to one minute