CVE-2023-43000

Advisory lineage Upstream: 0 Downstream: 17
Analyzed
Published: 05 Nov 2025, 18:33
Last modified:12 Mar 2026, 00:52

Vulnerability Summary

Overall Risk (default)
medium
45/100
CVSS Score
8.8 HIGH
v3.1 (cve.org)
EPSS Score
0.06% LOW
0% probability 0.00%
KEV
Listed
CISA
1 listing
Ransomware
No reports
Public exploits
1 found
Dark Web
Not detected

Timeline

05 Nov 2025, 18:33
Published
Vulnerability first disclosed
05 Mar 2026, 00:00
Added to CISA KEV
Apple Multiple products Use-After-Free Vulnerability
12 Mar 2026, 00:52
Last Modified
Vulnerability information updated
26 Mar 2026, 00:00
CISA Remediation Due
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

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.

CVSS Metrics

  • v3.1•HIGH•Score: 8.8CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS Trends

Current EPSS score: 0.06%• Percentile: 19%

Techniques & Countermeasures

  • CWE-416•Use After Free

    The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

Affected Systems

  • Unknown•iOS and iPadOS

    ≥ unspecified, < 16.6 | ≥ unspecified, < 15.8.7

  • apple•ipados

    < 16.6 | < 15.8.7 | ≥ 16.0, < 16.6

  • apple•iphone_os

    < 16.6 | < 15.8.7 | ≥ 16.0, < 16.6

  • Unknown•macOS

    ≥ unspecified, < 13.5 | < 13.5

  • apple•safari

    ≥ unspecified, < 16.6 | < 16.6

References (6)