Risk Letters

Exploited vulnerability

CVE-2025-43520

TLP:CLEAR

Apple Multiple Products Classic Buffer Overflow Vulnerability

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.

Facts

  • Vendor: Apple
  • Product: Multiple Products
  • CVSS: 5.5
  • EPSS (probability of exploitation within 30 days): 0.4 %
  • On CISA's Known Exploited Vulnerabilities list since: 20 March 2026
  • First known exploitation: 20 March 2026
  • CISA's deadline for US federal agencies: 3 April 2026
  • Weakness: CWE-120
  • First seen by Risk Letters: 20 March 2026

Members see which Nordic sectors the flaw hits, and what to do about it.

Get the full brief

Data: NVD (public domain), CISA KEV, FIRST EPSS, MITRE ATT&CK, AlienVault OTX. NVD