CVE-2025-43310

Sensitive-data exposure via induced pasteboard copy

Published Sep 15, 2025 · Updated Sep 15, 2025

Configuration flaw in WindowServer in Apple macOS before 14.8, before 15.7, and before 26 allows local users to induce sensitive pasteboard writes. Apple has not disclosed the specific WindowServer configuration or the operation that causes a user-directed copy to place sensitive data on the pasteboard. Exploitation requires local app execution and user interaction, and the bounded consequence is exposure of data copied to the pasteboard.

CVSS severity4.4
Medium
EPSS probability0.21%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Configuration flaw in WindowServer in Apple macOS before 14.8, before 15.7, and before 26 allows local users to induce sensitive pasteboard writes. Apple has not disclosed the specific WindowServer configuration or the operation that causes a user-directed copy to place sensitive data on the pasteboard. Exploitation requires local app execution and user interaction, and the bounded consequence is exposure of data copied to the pasteboard.

The record

CVE
CVE-2025-43310
Published
Sep 15, 2025
Updated
Sep 15, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-359, T1204
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Sep 15, 2025CVE publishedPublication date reported by the CVE source.
  2. Sep 15, 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
  3. Affected versionversion=unspecified <26

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · macOSversion=unspecified <14.8; version=unspecified <15.7; version=unspecified <26

Published CVSS scores

4.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-359Exposure of Private Personal Information to an Unauthorized Actor
T1204User Execution

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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