1. Home
  2. Vulnerabilities
  3. CVE-2023-43000
Known Exploited Vulnerability
8.8
HIGH CVSS 3.1
CVE-2023-43000
Apple Multiple products Use-After-Free Vulnerability - [Actively Exploited]
Overview
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.

Details
INFO

Published Date :

Nov. 5, 2025, 7:15 p.m.

Last Modified :

March 12, 2026, 1:25 p.m.

Remotely Exploit :

Yes !

Source :

[email protected]
CISA Notification
CISA KEV (Known Exploited Vulnerabilities)

For the benefit of the cybersecurity community and network defenders—and to help every organization better manage vulnerabilities and keep pace with threat activity—CISA maintains the authoritative source of vulnerabilities that have been exploited in the wild.

Description :

Apple macOS, iOS, iPadOS, and Safari 16.6 contain a use-after-free vulnerability due to the processing of maliciously crafted web content that may lead to memory corruption.

Required Action :

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

Known Ransomware Campaign Use:

Unknown

Notes :

https://support.apple.com/en-us/120324 ; https://support.apple.com/en-us/120331 ; https://support.apple.com/en-us/120338 ; https://nvd.nist.gov/vuln/detail/CVE-2023-43000

Impact
Affected Products

The following products are affected by CVE-2023-43000 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Apple macos
2 Apple iphone_os
3 Apple safari
4 Apple ipados
: Total Affected Vendor : 1 | Products : 4
Scoring
CVSS Scores
The Common Vulnerability Scoring System is a standardized framework for assessing the severity of vulnerabilities in software and systems. We collect and displays CVSS scores from various sources for each CVE.
Score Version Severity Vector Exploitability Score Impact Score Source
CVSS 3.1 HIGH 134c704f-9b21-4f2e-91b3-4a467353bcc0
CVSS 3.1 HIGH [email protected]
Solution
Apply security updates to prevent memory corruption vulnerabilities.
  • Update macOS to version 13.5.
  • Update iOS to version 16.6.
  • Update iPadOS to version 16.6.
  • Update Safari to version 16.6.
Public PoC/Exploit Available at Github

CVE-2023-43000 has a 2 public PoC/Exploit available at Github. Go to the Public Exploits tab to see the list.

References
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2023-43000.

URL Resource
https://support.apple.com/en-us/120324 Release Notes Vendor Advisory
https://support.apple.com/en-us/120331 Release Notes Vendor Advisory
https://support.apple.com/en-us/120338 Release Notes Vendor Advisory
https://support.apple.com/en-us/126632 Release Notes Vendor Advisory
https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit Exploit Third Party Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000 US Government Resource
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2023-43000 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2023-43000 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Profile Photo
zeroxjf/iOS-Coruna-Reconstruction

Reverse-engineering reconstruction of the Coruna iOS exploit kit (iOS 16/17 chains)

C Python

Updated: 2 days, 20 hours ago
34 stars 5 fork 5 watcher
Born at : March 14, 2026, 7:27 p.m. This repo has been linked 12 different CVEs too.
Profile Photo
0xcrypto/apple-cves

None

Python

Updated: 1 week, 2 days ago
0 stars 0 fork 0 watcher
Born at : Jan. 26, 2026, 8:17 a.m. This repo has been linked 2857 different CVEs too.

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2023-43000 vulnerability anywhere in the article.

  • The Cyber Express
Apple Patches WebKit Vulnerability CVE-2026-20643 Across iOS, macOS

Apple has released a new security update to address a critical WebKit vulnerability tracked as CVE-2026-20643. The vulnerability was identified as a cross-origin issue within the Navigation API of Web ... Read more

Published Date: Mar 19, 2026 (4 days, 20 hours ago)
  • The Hacker News
Apple Fixes WebKit Vulnerability Enabling Same-Origin Policy Bypass on iOS and macOS

Apple on Tuesday released its first round of Background Security Improvements to address a security flaw in WebKit that affects iOS, iPadOS, and macOS. The vulnerability, tracked as CVE-2026-20643 (CV ... Read more

Published Date: Mar 18, 2026 (6 days, 1 hour ago)
  • CybersecurityNews
Apple Released Emergency Updates for iOS 15.8.7 to Thwart ‘Coruna’ Exploit Kit

Apple Released Emergency Updates iOS 15.8.7 Apple has rolled out an emergency security update, iOS 15.8.7 and iPadOS 15.8.7, to protect older devices from a severe threat known as the ‘Coruna’ exploit ... Read more

Published Date: Mar 13, 2026 (1 week, 3 days ago)
  • Daily CyberSecurity
Legacy Under Siege: Apple Pushes Emergency iOS 15.8.7 Update to Thwart ‘Coruna’ Exploit Kit

In a major move to protect users of older hardware, Apple has released critical security updates for iOS 15.8.7 and iPadOS 15.8.7. This emergency response follows a stark warning from Google regarding ... Read more

Published Date: Mar 13, 2026 (1 week, 4 days ago)
  • TheCyberThrone
Apple Patches Coruna Exploit Kit — Older iOS/iPadOS Devices

March 13, 2026What is Coruna?Researchers from Google and iVerify disclosed in early March 2026 a sophisticated exploit kit dubbed Coruna, described as “nation-state grade,” enabling mass exploitation ... Read more

Published Date: Mar 13, 2026 (1 week, 4 days ago)
  • The Hacker News
Apple Issues Security Updates for Older iOS Devices Targeted by Coruna WebKit Exploit

Apple on Wednesday backported fixes for a security flaw in iOS, iPadOS, and macOS Sonoma to older versions after it was found to be used as part of the Coruna exploit kit. The vulnerability, tracked a ... Read more

Published Date: Mar 12, 2026 (1 week, 4 days ago)
  • security.nl
Apple beschermt oude iPhones tegen actief aangevallen kwetsbaarheid

Apple heeft beveiligingsupdates uitgebracht om oude iPhones en iPads tegen actief aangevallen kwetsbaarheden te beschermen. Onlangs werd bekend dat aanvallers de beveiligingslekken, waarvoor Apple al ... Read more

Published Date: Mar 12, 2026 (1 week, 4 days ago)
  • CybersecurityNews
CISA Warns of macOS and iOS Vulnerabilities Exploited in Attacks

CISA Warns macOS and iOS Vulnerabilities Exploit The Cybersecurity and Infrastructure Security Agency (CISA) has issued a critical alert regarding multiple Apple vulnerabilities currently facing activ ... Read more

Published Date: Mar 09, 2026 (2 weeks, 1 day ago)
  • Ars Technica
Feds take notice of iOS vulnerabilities exploited under mysterious circumstances

Coruna is also notable for its use by three distinct hacking groups. Google first detected its use in February of last year in an operation conducted by a “customer of a surveillance vendor.” The vuln ... Read more

Published Date: Mar 06, 2026 (2 weeks, 3 days ago)
  • TheCyberThrone
CISA Adds Five Flaws to Its KEV Catalog

March 6, 2026Federal agencies face a three-week deadline to remediate a set of vulnerabilities spanning consumer devices, industrial controllers, and surveillance cameras — all confirmed to be activel ... Read more

Published Date: Mar 06, 2026 (2 weeks, 3 days ago)
  • Daily CyberSecurity
Coruna: The High-Powered iOS Exploit Kit Proliferating Across the Global Threat Landscape

Coruna iOS exploit kit timeline The Google Threat Intelligence Group (GTIG) has detailed the curtain on “Coruna,” a formidable iOS exploit kit that has transitioned from the hands of commercial survei ... Read more

Published Date: Mar 05, 2026 (2 weeks, 5 days ago)
  • The Hacker News
Coruna iOS Exploit Kit Uses 23 Exploits Across Five Chains Targeting iOS 13–17.2.1

Google said it identified a "new and powerful" exploit kit dubbed Coruna (aka CryptoWaters) targeting Apple iPhone models running iOS versions between 13.0 and 17.2.1. The exploit kit featured five fu ... Read more

Published Date: Mar 04, 2026 (2 weeks, 5 days ago)
  • CybersecurityNews
Coruna Exploit Kit With 23 Exploits Hacked Thousands of iPhones

Coruna iOS Exploit Kit Google’s Threat Intelligence Group (GTIG) has uncovered Coruna, a sophisticated iOS exploit kit containing 23 exploits across five full exploit chains that compromised thousands ... Read more

Published Date: Mar 04, 2026 (2 weeks, 6 days ago)
  • Help Net Security
Coruna: Spy-grade iOS exploit kit powering financial crime

A powerful iOS exploit kit has circulated among multiple threat actors over the past year, moving from a commercial surveillance operation to state-linked espionage campaigns and, ultimately, ended in ... Read more

Published Date: Mar 03, 2026 (2 weeks, 6 days ago)
  • Google Cloud
Coruna: The Mysterious Journey of a Powerful iOS Exploit Kit

Introduction Google Threat Intelligence Group (GTIG) has identified a new and powerful exploit kit targeting Apple iPhone models running iOS version 13.0 (released in September 2019) up to version 17. ... Read more

Published Date: Mar 03, 2026 (2 weeks, 6 days ago)

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2023-43000 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Modified Analysis by [email protected]

    Mar. 12, 2026

    Action Type Old Value New Value
    Changed CPE Configuration OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 13.5 OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions from (including) 16.0 up to (excluding) 16.6 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions from (including) 16.0 up to (excluding) 16.6 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 13.5 *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 15.8.7 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 15.8.7
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/126632 Types: Release Notes, Vendor Advisory
  • CVE Modified by [email protected]

    Mar. 12, 2026

    Action Type Old Value New Value
    Changed 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. Processing maliciously crafted web content may lead to memory corruption. 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.
    Added Reference https://support.apple.com/en-us/126632
  • Modified Analysis by [email protected]

    Mar. 06, 2026

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-416
    Added Reference Type CISA-ADP: https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000 Types: US Government Resource
    Added Reference Type CISA-ADP: https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit Types: Exploit, Third Party Advisory
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Mar. 05, 2026

    Action Type Old Value New Value
    Added Reference https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit
    Added Reference https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000
  • CVE CISA KEV Update by 9119a7d8-5eab-497f-8521-727c672e3725

    Mar. 05, 2026

    Action Type Old Value New Value
    Added Date Added 2026-03-05
    Added Due Date 2026-03-26
    Added Vulnerability Name Apple Multiple products Use-After-Free Vulnerability
    Added Required Action Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
  • Initial Analysis by [email protected]

    Nov. 07, 2025

    Action Type Old Value New Value
    Added CPE Configuration OR *cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:* versions up to (excluding) 16.6 *cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* versions up to (excluding) 13.5
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/120324 Types: Release Notes, Vendor Advisory
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/120331 Types: Release Notes, Vendor Advisory
    Added Reference Type Apple Inc.: https://support.apple.com/en-us/120338 Types: Release Notes, Vendor Advisory
  • New CVE Received by [email protected]

    Nov. 05, 2025

    Action Type Old Value New Value
    Added 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. Processing maliciously crafted web content may lead to memory corruption.
    Added Reference https://support.apple.com/en-us/120324
    Added Reference https://support.apple.com/en-us/120331
    Added Reference https://support.apple.com/en-us/120338
  • CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0

    Nov. 05, 2025

    Action Type Old Value New Value
    Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
    Added CWE CWE-416
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CVSS
Vulnerability Scoring Details
Base CVSS Score: 8.8
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact