Is CVE-2023-43000 actively exploited?

Yes. CVE-2023-43000 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2023-43000 be exploited remotely?

The attack vector of CVE-2023-43000 has not been classified yet.

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

CVE-2023-43000 has a CVSS score of 8.8 (HIGH).

HOME VULNERABILITIESCVE-2023-43000

HIGHCISA KEVIN THE WILD

CVE-2023-43000

Published: November 5, 2025· Updated: Mar 12, 2026

8.8

CVSS v3.1

Official 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.

NVD Source

Technical Analysis

CVE-2023-43000 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2023-43000 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.

Exploit & PoC Resources

ACTIVE EXPLOITATIONConfirmed exploitation in the wild

Exploit-DB

Offensive Security exploit database

GitHub PoC Search

Community PoC repositories

Rapid7 / Metasploit

Metasploit module search

PacketStorm

Security advisories & exploits

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News & Research Mentioning CVE-2023-43000

CISA Adds Five Known Exploited Vulnerabilities to Catalog

CISA Alerts· Mar 5, 2026

CISA has added five new vulnerabilities to its Known Exploited Vulnerabilities (KEV) Catalog, based on evidence of active exploitation. CVE-2017-7921 Hikvision Multiple Products Improper Authentication Vulnerability CVE-2021-22681 Rockwell Multiple Products Insufficient Protected Credentials Vulnerability CVE-2021-30952 Apple Multiple Products Integer Overflow or Wraparound Vulnerability CVE-2023-41974 Apple iOS and iPadOS Use-After-Free Vulnerability CVE-2023-43000 Apple Multiple products Use-After-Free Vulnerability These types of vulnerabilities are frequent attack vectors for malicious cyber actors and pose significant risks to the federal enterprise. Binding Operational Directive (BOD) 22-01: Reducing the Significant Risk of Known Exploited Vuln [xlite_meta score:60 src:CISA Alerts xlite_fp:165b5f850ff27845912a94f08bffe9b643bd34ae020914d5914015be5e7ed84e]