All vulnerabilities
CVE-2025-43520

Apple Multiple Products Classic Buffer Overflow Vulnerability

Apple Multiple Products
Open in ThreatlineRecord JSON
CVSS
5.5Medium
ExploitationExploited in the wildAdded to KEV 20 Mar 2026CISA KEV
Exploit odds (EPSS)0.43%Chance of exploitation activity in the next 30 days, higher than 35% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in18.7.2Also 26.1, 14.8.2 and 1 moreCVE List
Federal deadline3 Apr 2026Remediation due date for US federal agenciesCISA KEV
CISA required actionApply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. CISA KEV

What fixes it

Show all 8 fixed versions

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Timeline

  1. 12 Dec 2025, 20:56 UTCPublishedCVE List
  2. 20 Mar 2026Added to CISA KEVCISA KEV

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.

Text from CVE List

Affected versions 8

  • iOS and iPadOSaffected: all versions before 18.7.2CVE List
  • iOS and iPadOSaffected: all versions before 26.1CVE List
  • macOSaffected: all versions before 14.8.2CVE List
  • macOSaffected: all versions before 15.7.2CVE List
  • macOSaffected: all versions before 26.1CVE List
  • tvOSaffected: all versions before 26.1CVE List
  • visionOSaffected: all versions before 26.1CVE List
  • watchOSaffected: all versions before 26.1CVE List

References 11