CVE-2025-43373

System crash or kernel-memory corruption via Wi-Fi

Published Nov 4, 2025 · Updated Nov 4, 2025

Memory corruption in Apple macOS Wi-Fi allows local users to crash the system or corrupt kernel memory through an app. Apple identifies improved memory handling as the correction but has not disclosed the Wi-Fi code path or the invalid memory operation. Execution of an app on an affected Mac is required, and the reported consequences are unexpected system termination or kernel-memory corruption.

CVSS severity7.5
High
EPSS probability0.46%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Memory corruption in Apple macOS Wi-Fi allows local users to crash the system or corrupt kernel memory through an app. Apple identifies improved memory handling as the correction but has not disclosed the Wi-Fi code path or the invalid memory operation. Execution of an app on an affected Mac is required, and the reported consequences are unexpected system termination or kernel-memory corruption.

The record

CVE
CVE-2025-43373
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-787, CWE-119, T1499
Attack vector
local
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 4, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=unspecified <14.8
  2. Affected versionversion=unspecified <15.7

What conditions does exploitation require?

Attack vectorlocal
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=unspecified <14.8; version=unspecified <15.7

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-787Out-of-bounds Write
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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