CVE-2023-43000 (GCVE-0-2023-43000)

Vulnerability from cvelistv5 – Published: 2025-11-05 18:33 – Updated: 2026-03-12 00:52
VLAI CISA KEV
Summary
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.
Severity
8.8 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE
  • Processing maliciously crafted web content may lead to memory corruption
Assigner
References
Impacted products
Vendor Product Version
Apple macOS Affected: unspecified , < 13.5 (custom)
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Apple iOS and iPadOS Affected: unspecified , < 16.6 (custom)
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Apple Safari Affected: unspecified , < 16.6 (custom)
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Apple iOS and iPadOS Affected: unspecified , < 15.8.7 (custom)
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CISA KEV
Known Exploited Vulnerability - GCVE BCP-07 Compliant
KEV entry ID: dc62a36d-21c6-4503-8b81-134b27357f4f

Vulnerability ID: CVE-2023-43000

Status: Confirmed

Status Updated: 2026-03-05 00:00 UTC

Exploited: Yes

Timestamps
First Seen: 2026-03-05
Asserted: 2026-03-05
Scope
Notes: KEV entry: Apple Multiple products Use-After-Free Vulnerability | Affected: Apple / Multiple Products | 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. | Due date: 2026-03-26 | Known ransomware campaign use (KEV): Unknown | Notes (KEV): 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
Evidence

Type: Vendor Report

Signal: Successful Exploitation

Confidence: 80%

Source: cisa-kev

Details
Cwes CWE-416
Feed CISA Known Exploited Vulnerabilities Catalog
Product Multiple Products
Due Date 2026-03-26
Date Added 2026-03-05
Vendorproject Apple
Vulnerabilityname Apple Multiple products Use-After-Free Vulnerability
Knownransomwarecampaignuse Unknown
References
Created: 2026-03-05 20:00 UTC | Updated: 2026-03-05 20:00 UTC
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Tags
Taxonomy of the tags.




Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

Author Source Type Date Other

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.