CVE-2023-43000

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.

Overview

State: PUBLISHED
Assigner (CNA): apple
CVSS severity: —
CVSS score: —
CVSS vector: AV:N/AC:M/Au:N/C:C/I:C/A:C
Effective score: 8.8 / 10 HIGH source: NVD
CWE(s): —
Reserved: 2023-09-14
Published: 2025-11-05 19:33 UTC
Last updated: 2026-03-12 01:52 UTC
Source: https://raw.githubusercontent.com/CVEProject/cvelistV5/main/cves/2023/43xxx/CVE-2023-43000.json
Linked Threat: CVE-2023-43000 — Apple Multiple Products: Apple Multiple products Use-After-Free Vulnerability

CISA Known Exploited Vulnerabilities CISA KEV

CISA has confirmed in-the-wild exploitation of this CVE. Federal agencies must remediate by the due date below; private orgs should treat it as priority-1.

Vulnerability name: Apple Multiple products Use-After-Free Vulnerability
Vendor / project: Apple
Product: Multiple Products
Date added to KEV: 2026-03-05
Remediation due: 2026-03-26
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.
Ransomware campaign use: Unknown
CISA 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
CISA listing: www.cisa.gov/known-exploited-vulnerabilities-catalog

NVD triage scoring NVD CVE 2.0

Layer NVD adds on top of the CNA's CVE record — published / last-modified timestamps, exploitability / impact subscores, and the FIRST.org EPSS probability that this CVE will be exploited in the wild in the next 30 days.

NVD published: 2025-11-05 19:15:47 UTC
NVD last modified: 2026-06-17 06:24:58 UTC
NVD CVSS v3.1: 8.8 / 10 HIGH source: nvd@nist.gov
NVD CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploitability subscore: 2.8 / 10
Impact subscore: 5.9 / 10
EPSS score: 0.0390 (probability of exploitation in next 30 days)
EPSS percentile: 88.95% vs all CVEs — higher = more likely to be exploited, as of 2026-06-29

NVD-assigned CWE(s): CWE-416 (differs from the CNA list above)

European Union Vulnerability Database ENISA EUVD

ENISA's official EU repository for curated vulnerability intelligence. Carries a separate identifier (EUVD-YYYY-NNNN) and frequently exposes an earlier-published description + CVSS than NVD does.

EUVD ID: EUVD-2023-47421
Assigner: apple
Published: Nov 5, 2025, 6:33:23 PM
Updated: Mar 12, 2026, 12:52:04 AM
EUVD base score (CVSS 3.1): 8.8 / 10
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EUVD-reported EPSS: 0.0300
Vendors: Apple
Products: iOS and iPadOS (unspecified <15.8.7)

iOS and iPadOS (unspecified <16.6)

macOS (unspecified <13.5)

Safari (unspecified <16.6)
Aliases: GHSA-96ff-3rwm-724g

ENISA 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.

EUVD references (4)

Affected products (4)

Vendor	Product	Versions	Platforms
Apple	macOS	`unspecified` (affected)	—
Apple	iOS and iPadOS	`unspecified` (affected)	—
Apple	Safari	`unspecified` (affected)	—
Apple	iOS and iPadOS	`unspecified` (affected)	—

Affected products — CPE 2.3 (4) NVD

NVD's normalized CPE 2.3 matchers, used by vendor tools (vulnerability scanners, asset managers) for automated detection. Compare with the CNA's free-text "Affected products" section above.

cpe:2.3:a:apple:safari:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:*
cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:*

Vendor references (4)

References embedded in the original CVE record by the assigning CNA.

MITRE references (4) cveawg.mitre.org

Pulled from MITRE's CVE Services API by the 🛰 Backfill from MITRE button.

Web references (10)

DuckDuckGo results ranked by threat-intel / vendor advisory domains. Generated by the 🔎 Find references (web) button above — same flow as the Remediations search.

https://webkitgtk.org/security/WSA-2025-0008.html rapid7:webkitgtk.org
https://www.cisa.gov/known-exploited-vulnerabilities-catalog rapid7:www.cisa.gov
http://support.apple.com/kb/HT213847 rapid7:support.apple.com
https://support.apple.com/kb/HT213843 rapid7:support.apple.com
https://errata.almalinux.org/9/ALSA-2025-22790.html rapid7:errata.almalinux.org
https://errata.almalinux.org/8/ALSA-2025-22789.html rapid7:errata.almalinux.org
https://www.cve.org/CVERecord?id=CVE-2023-43000 rapid7:www.cve.org
https://attackerkb.com/topics/CVE-2023-43000 rapid7:attackerkb.com
https://euvd.enisa.europa.eu/vulnerability/EUVD-2023-47421 rapid7:euvd.enisa.europa.eu
http://cwe.mitre.org/data/definitions/416.html rapid7:cwe.mitre.org

NVD-tagged references (6)

Reference list NVD curates from the CNA record, vendor advisories, and third-party reports. The tag chips below are NVD's analyst-assigned categories.

https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit 134c704f-9b21-4f2e-91b3-4a467353bcc0 ExploitThird Party Advisory
https://support.apple.com/en-us/120324 product-security@apple.com Release NotesVendor Advisory
https://support.apple.com/en-us/120331 product-security@apple.com Release NotesVendor Advisory
https://support.apple.com/en-us/120338 product-security@apple.com Release NotesVendor Advisory
https://support.apple.com/en-us/126632 product-security@apple.com Release NotesVendor Advisory
https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000 134c704f-9b21-4f2e-91b3-4a467353bcc0 US Government Resource

Indicators (2)

IOCs linked to the auto-promoted Threat row.

Type	Value	VirusTotal	Attached
cwe	`CWE-416`	no local data	2026-05-14 02:58 UTC
cve	`CVE-2023-43000`	no local data	2026-05-14 02:58 UTC

Remediations (11)

Remediations are stored against the linked Threat row; the list below is deduplicated across both pages.

Microsoft Patch Tuesday March 2026 - 78 Vulnerabilities Fixed ...

web:cybersecuritynews.com

Microsoft released its March 2026 Patch Tuesday security update on March 10, 2026, addressing 78 vulnerabilities across Windows, Microsoft Office, Azure, SQL Server, and .NET. The update includes one actively exploited zero-day vulnerability and multiple Critical-rated flaws demanding immediate attention from security teams. The most urgent fix this month is CVE -2026-21262, the sole zero-day ...

2026-05-23 01:16 UTC
Security Update Guide - Microsoft

web:portal.msrc.microsoft.com

The Security Update Guide provides information on the latest Microsoft security updates, helping users understand and address potential vulnerabilities effectively.

2026-05-23 01:16 UTC
Microsoft March 2026 Patch Tuesday fixes 2 zero-days, 79 flaws

web:www.bleepingcomputer.com

Today is Microsoft's March 2026 Patch Tuesday with security updates for 79 flaws, including 2 publicly disclosed zero-day vulnerabilities.

2026-05-23 01:16 UTC
Call of Duty: Warzone Season 03 Reloaded Patch Notes

web:www.callofduty.com

Fixed an issue with Berserker that prevented Quick- Fix from properly accelerating the armor plate animation. Fixed an issue where Most Wanted granted Ghost instead of pulling from the Contract Reward perk pool.

2026-05-23 01:16 UTC
2023 Top Routinely Exploited Vulnerabilities - CISA

web:www.cisa.gov

For patch information on CVEs identified in this advisory, refer to the Appendix: Patch Information and Additional Resources for Top Exploited Vulnerabilities. If a patch for a KEV or critical vulnerability cannot be quickly applied, implement vendor-approved workarounds.

2026-05-23 01:16 UTC
CVE: Common Vulnerabilities and Exposures

web:www.cve.org

At cve .org, we provide the authoritative reference method for publicly known information-security vulnerabilities and exposures

2026-05-23 01:16 UTC
Critical Patch Updates, Critical Security Patch Updates ... - Oracle

web:www.oracle.com

Critical Security Patch Updates Critical Security Patch Updates provide security patches for supported Oracle on-premises products. A Critical Security Patch Update provides targeted, high-priority security fixes in a smaller, more focused format, making them easier to apply with minimal disruption.

2026-05-23 01:16 UTC
Rapid7 Vulnerability Database

web:www.rapid7.com

vulnerability Amazon Linux AMI 2: CVE-2023-43000 : Security patch for webkitgtk4 (ALAS-2024-2427)

2026-05-23 01:16 UTC
Samsung monthly updates: March 2026 security patch fixes 65 ...

web:www.sammobile.com

The March 2026 security patch includes fixes for 65 vulnerabilities affecting Galaxy devices. Of these, 60 are Android-related vulnerabilities known as Common Vulnerabilities and Exposures ( CVEs ). The fixes for these issues were provided by Google.

2026-05-23 01:16 UTC
I tested Windows 11 March 2026 Updates: Everything new ... - Windows Latest

web:www.windowslatest.com

Windows 11 March 2026 Patch Tuesday update adds Emoji 16.0, Sysmon, network speed test, reliability improvements, and security fixes.

2026-05-23 01:16 UTC
CISA Required Action

CISA KEV

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. Due date: 2026-03-26 Known ransomware campaign use: Unknown

2026-05-14 01:13 UTC

AI Forensic Analysis

Only Available for Registered Users. Sign in to view.

Raw JSON

The full cvelistV5 record. Download as CVE-2023-43000.json.

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