CVE-2025-43520

MEDIUM CISA KEV EPSS 31.9%
Published Dec 12, 20256mo ago · Modified Jun 17, 20261w ago
5.5 CVSS 3.1
Medium
Find Similar
Published Dec 12, 2025 6mo ago
Last Modified Jun 17, 2026 1w ago
KEV Listed Mar 20, 2026 3mo ago
KEV Due Apr 3, 2026 87d overdue

Description

A memory corruption issue was addressed with improved memory handling. This issue is fixed in iOS 18.7.2 and iPadOS 18.7.2, iOS 26.1 and iPadOS 26.1, macOS Sequoia 15.7.2, macOS Sonoma 14.8.2, macOS Tahoe 26.1, tvOS 26.1, visionOS 26.1, watchOS 26.1. A malicious application may be able to cause unexpected system termination or write kernel memory.

CVSS Details

Base Score
5.5
Exploitability
1.8
Impact
3.6
Vector string
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity None
Availability High

Threat Intelligence

CISA Known Exploited Overdue 87d
Added
Mar 20, 2026
Due
Apr 3, 2026

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

EPSS Exploit Probability
31.9% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available

Weaknesses 1

CWE-120

Affected Products 10

VendorProductVersionRange
appleipados* <18.7.2
appleipados26.0any
appleiphone_os* <18.7.2
appleiphone_os26.0any
applemacos*≥14.0  –  <14.8.2
applemacos*≥15.0  –  <15.7.2
applemacos26.0any
appletvos* <26.1
applevisionos* <26.1
applewatchos* <26.1

References 10

  • cloud.google.com https://cloud.google.com/blog/topics/threat-intelligence/darksword-ios-exploit-chain/
    Technical Description
  • support.apple.com https://support.apple.com/en-us/125632
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125633
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125634
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125635
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125636
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125637
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125638
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/125639
    Release NotesVendor Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-43520
    US Government Resource

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.