Is CVE-2023-43000 being actively exploited?

Yes. CVE-2023-43000 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added on March 5, 2026.

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

CVE-2023-43000 has a CVSS 3.1 base score of 8.8 (HIGH).

CVE-2023-43000

HIGH · CVSS 8.8CISA KEV: actively exploitedEPSS 4.0%EU EUVD: exploited

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.

Key facts

CVSS score: 8.8 (v3.1)
Severity: HIGH
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-416
EPSS score: 4.0% (90th percentile)
In CISA KEV: Yes, added March 5, 2026
In EU EUVD: Yes (EUVD-2023-47421)
Published: November 5, 2025
NVD last modified: September 21, 2026
Status: Analyzed

CISA Known Exploited Vulnerability

Apple Multiple products Use-After-Free Vulnerability

Added to the KEV catalog on March 5, 2026; federal remediation due March 26, 2026.

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2023-47421 in the EU Vulnerability Database. ENISA flags it as known exploited. Last updated in EUVD on September 21, 2026.

View on the EU Vulnerability Database

Affected products

apple / ipados
apple / iphone os
apple / macos
apple / safari

Certified products that may be affected

19 FIPS 140 or Common Criteria certified products, from automated matching by sec-certs.org.

Strong Customer Authentication for Apple Pay, on MacBook Air 2022 with M2 running macOS Ventura 13.3.1 - Apple Inc. - Common Criteria 2023-9-INF-4307 - active
Strong Customer Authentication for Apple Pay on iPhone 14 Pro with A16 Bionic running iOS 16.4.1Version iOS 16.4.1 (build 20E252) ( ANSSI-CC-2023/59) - Apple Inc. - Common Criteria ANSSI-CC-2023/59 - active
Strong Customer Authentication for Apple Pay on Mac mini with M2 and Magic keyboard with Touch ID, running macOS Ventura 13.3.1 , macOS Ventura 13.3.1 (build 22E261) ( ANSSI-CC-2023/61) - Apple Inc. - Common Criteria ANSSI-CC-2023/61 - active
Strong Customer Authentication for Apple Pay on iPhone SE (3rd generation) with A15 Bionic running iOS 16.4.1iOS 16.4.1 (build 20E252) (ANSSI-CC-2023/58) - Apple Inc. - Common Criteria ANSSI-CC-2023/58 - active
Strong Customer Authentication pour Apple Pay sur Mac mini avec M1 et Magic keyboard avec Touch ID, exécutant macOS Monterey 12.3.1 (Version 12.3.1 (build 21E258)) - Apple Inc. - Common Criteria ANSSI-CC-2023/19 - active

See all 19 in the Security Certifications Explorer.

References

https://cloud.google.com/blog/topics/threat-intelligence/coruna-powerful-ios-exploit-kit(Exploit, Third Party Advisory)
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://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-43000(US Government Resource)

Last updated September 23, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

Query CVEs from your AI assistant

The CVE/NVD Explorer brain answers CVE questions directly inside Claude, ChatGPT, or any MCP assistant — always up to date, no setup. Add it once and stop pasting advisories into chat.

Add the CVE brain