CVE-2024-27853

Gatekeeper bypass via crafted ZIP archive

Published Jul 29, 2024 · Updated Apr 2, 2026

Authentication bypass in Apple macOS before 14.4 allows attackers to evade Gatekeeper checks through a maliciously crafted ZIP archive. Apple identifies libarchive as the affected component but has not published the precise check that fails during ZIP processing. Exploitation requires user interaction with the crafted archive, and the resulting bypass removes Gatekeeper's trust check for contained software.

CVSS severity4.4
Medium
EPSS probability0.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authentication bypass in Apple macOS before 14.4 allows attackers to evade Gatekeeper checks through a maliciously crafted ZIP archive. Apple identifies libarchive as the affected component but has not published the precise check that fails during ZIP processing. Exploitation requires user interaction with the crafted archive, and the resulting bypass removes Gatekeeper's trust check for contained software.

The record

CVE
CVE-2024-27853
Published
Jul 29, 2024
Updated
Apr 2, 2026
Vendor
Apple
Product
macOS
Classifications
CWE-290, T1553.001
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jul 29, 2024CVE 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 <14.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=0 <14.4

Published CVSS scores

4.4CISA-ADPCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
4.4NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/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 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-290Authentication Bypass by Spoofing
T1553.001Gatekeeper Bypass

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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