Is CVE-2023-43000 actively exploited?

CVE-2023-43000 has no public evidence of in-the-wild exploitation as of 2026-03-12.

What is the CVSS score for CVE-2023-43000?

CVE-2023-43000 has a CVSS score of 8.8 (HIGH severity). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

How do I patch CVE-2023-43000?

Patch guidance is available from apple security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2023-43000.

Fix CVE-2023-43000 - HIGH apple safari

Q: Which products are affected by CVE-2023-43000?

6 products: apple safari, apple ipados, apple ipados, apple iphone os, apple iphone os, and 1 more.

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 Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack Vector: network
Complexity: low
Privileges: none
User Action: required
Scope: unchanged
Confidentiality: high
Integrity: high
Availability: high
Weaknesses: CWE-416 · Use After Free CWE-416 · Use After Free

Metadata

Primary Vendor: APPLE
Published: 11/5/2025
Last Modified: 3/12/2026
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

Affected Products

apple : safariapple : ipadosapple : ipadosapple : iphone_osapple : iphone_osapple : macos

Remediation Guidance

Executive Summary

View on NIST NVD