CVE-2023-43000

HIGH CISA KEV EPSS 89.0%
Published Nov 5, 20257mo ago · Modified Jun 17, 20261w ago
8.8 CVSS 3.1
High
Find Similar
Published Nov 5, 2025 7mo ago
Last Modified Jun 17, 2026 1w ago
KEV Listed Mar 5, 2026 3mo ago
KEV Due Mar 26, 2026 95d overdue

Description

A use-after-free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13.5, iOS 16.6 and iPadOS 16.6, Safari 16.6, iOS 15.8.7 and iPadOS 15.8.7. Processing maliciously crafted web content may lead to memory corruption.

CVSS Details

Base Score
8.8
Exploitability
2.8
Impact
5.9
Vector string
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Unchanged
Confidentiality High
Integrity High
Availability High

Threat Intelligence

CISA Known Exploited Overdue 95d
Added
Mar 5, 2026
Due
Mar 26, 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
89.0% percentile
Exploit & Patch Status
Actively Exploited (KEV)
No Patch Available

Weaknesses 1

CWE-416 Use After Free Memory Safety

Affected Products 6

VendorProductVersionRange
applesafari* <16.6
appleipados* <15.8.7
appleipados*≥16.0  –  <16.6
appleiphone_os* <15.8.7
appleiphone_os*≥16.0  –  <16.6
applemacos* <13.5

References 6

  • cloud.google.com https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit
    ExploitThird Party Advisory
  • support.apple.com https://support.apple.com/en-us/120324
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/120331
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/120338
    Release NotesVendor Advisory
  • support.apple.com https://support.apple.com/en-us/126632
    Release NotesVendor Advisory
  • cisa.gov https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000
    US Government Resource

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.