CVE-2025-43348

Gatekeeper bypass via undisclosed validation logic

Published Nov 4, 2025 · Updated Nov 4, 2025

Improper input validation in Apple macOS before 14.8.2, 15.7.2, and 26.1 allows local users to bypass Gatekeeper via a crafted app. The flaw resides in Finder and System Settings, but Apple has not published the input or validation operation that fails. Exploitation requires user interaction with an app on the Mac, after which Gatekeeper trust checks can be bypassed; no data disclosure or service interruption is reported.

CVSS severity5.5
Medium
EPSS probability0.22%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper input validation in Apple macOS before 14.8.2, 15.7.2, and 26.1 allows local users to bypass Gatekeeper via a crafted app. The flaw resides in Finder and System Settings, but Apple has not published the input or validation operation that fails. Exploitation requires user interaction with an app on the Mac, after which Gatekeeper trust checks can be bypassed; no data disclosure or service interruption is reported.

The record

CVE
CVE-2025-43348
Published
Nov 4, 2025
Updated
Nov 4, 2025
Vendor
Apple
Product
macOS
Classifications
CWE-20, T1553.001
Attack vector
local
Privileges
unauthenticated

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 privilegesunauthenticated

What is affected?

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

Published CVSS scores

5.5CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
T1553.001Subvert Trust Controls: Gatekeeper Bypass

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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