CVE-2025-24156

Privilege escalation via Xsan integer overflow

Published Jan 27, 2025 · Updated Apr 2, 2026

Integer overflow in Apple macOS Xsan allows local users to elevate privileges by running an app that supplies crafted input. The Xsan component insufficiently validates an app-supplied value before an integer operation, allowing the calculation to exceed its representable range. Local app execution is required; Apple has not disclosed the affected Xsan function, input format, or resulting privilege level.

CVSS severity7.8
High
EPSS probability0.51%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Integer overflow in Apple macOS Xsan allows local users to elevate privileges by running an app that supplies crafted input. The Xsan component insufficiently validates an app-supplied value before an integer operation, allowing the calculation to exceed its representable range. Local app execution is required; Apple has not disclosed the affected Xsan function, input format, or resulting privilege level.

The record

CVE
CVE-2025-24156
Published
Jan 27, 2025
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-190, CAPEC-92, T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 27, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 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 <13.7.3
  2. Affected versionversion=0 <14.7.3
  3. Affected versionversion=0 <15.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · macOSversion=0 <13.7.3; version=0 <14.7.3; version=0 <15.3

Published CVSS scores

7.8NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-190Integer Overflow or Wraparound
CAPEC-92Forced Integer Overflow
T1068Exploitation for Privilege Escalation

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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