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8.8HighExploited CVE-2023-43000 Apple

Apple Multiple products Use-After-Free Vulnerability

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.

What happened

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.

CISA lists it as exploited, added 05 Mar 2026.

NVD description

Does it affect you

Names Apple macOS. Enter the product and version you run to place it against the affected range the vendor published.

What to do

  • Follow the vendor advisory for the fixed release and any interim mitigation.
    support.apple.com
  • Follow the vendor advisory for the fixed release and any interim mitigation.
    support.apple.com
  • Follow the vendor advisory for the fixed release and any interim mitigation.
    support.apple.com
  • Follow the vendor advisory for the fixed release and any interim mitigation.
    support.apple.com
  • Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
    cisa.gov

CISA’s notes for this entry:

Affected, as published to NVD

macos
Apple macOS: everything below 13.5

The record

Identifier
CVE-2023-43000 · NVD · CVE.org
NVD status
Analyzed
Published
05 Nov 2025, last modified 21 Sep 2026 (NVD)
Severity
CVSS 3.1 base score 8.8, High — computed here from the vector; NVD states 8.8.
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weakness
CWE-416 Use After Free (NVD; names by MITRE)
Exploitation
Listed in CISA’s Known Exploited Vulnerabilities catalogue since 05 Mar 2026; federal remediation due 26 Mar 2026. CISA entry
Vendor
Apple · Multiple Products (CISA)

References on the NVD record

The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.