CVE-2025-43520 - Apple Multiple Products Classic Buffer Overflow Vulnerability

Technical Severity

CVSS v3.1 Metrics

HIGH

7.1 / 10

Minimal Risk Critical

Vector Specification

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

Exploitation Likelihood

EPSS Prediction

0.47 %

Predictive Probability

Percentile Rank

64.7 th

Documented as more likely to be exploited than 64.7% of known CVEs.

Detection Date

Mar 20, 2026

Remediation Due

Apr 03, 2026

CISA Catalog Active

Threat Analysis

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.

Remediation Directive

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

External Intelligence

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

NVD

National Vulnerability Database

https://nvd.nist.gov/vuln/detail/CVE-2025-43520