CVE-2025-24260

Denial of service via undisclosed smbx memory handling

Published Mar 31, 2025 · Updated Jul 8, 2026

Denial of service in Apple macOS before 13.7.5, 14.7.5, or 15.4 allows attackers in a privileged position to interrupt service. Apple states only that improved memory handling corrected the smbx issue and has not disclosed the faulty operation or triggering input. Exploitation requires a privileged position; Apple does not specify whether smbx or the system hangs, crashes, or reboots.

CVSS severity9.8
Critical
EPSS probability0.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Denial of service in Apple macOS before 13.7.5, 14.7.5, or 15.4 allows attackers in a privileged position to interrupt service. Apple states only that improved memory handling corrected the smbx issue and has not disclosed the faulty operation or triggering input. Exploitation requires a privileged position; Apple does not specify whether smbx or the system hangs, crashes, or reboots.

The record

CVE
CVE-2025-24260
Published
Mar 31, 2025
Updated
Jul 8, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-400
Attack vector
Unavailable
Privileges
Unavailable

Timeline

How it unfolded

  1. Mar 31, 2025CVE publishedPublication date reported by the CVE source.
  2. Jul 8, 2026Record 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=0 <13.7.5
  2. Affected versionversion=0 <14.7.5
  3. Affected versionversion=0 <15.4

What conditions does exploitation require?

Attack vectorUnavailable in this record.
Required privilegesUnavailable in this record.

What is affected?

Apple · macOSversion=0 <13.7.5; version=0 <14.7.5; version=0 <15.4

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
VectorUnavailable
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-400Uncontrolled Resource Consumption

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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