CVE-2021-30750

Recent-contact disclosure via incorrect Sandbox permissions

Published Sep 8, 2021 · Updated Aug 3, 2024

Incorrect permissions in the Sandbox component of Apple macOS before 11.3 allow local users to access the user’s recent contacts. The Sandbox permissions logic incorrectly authorizes a malicious application to read recent-contact data; Apple has not disclosed the specific check or code path. Execution of a malicious application in the user’s session is required, and the reported impact is limited to disclosure of recent contacts.

CVSS severity5.5
Medium
EPSS probability0.84%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in the Sandbox component of Apple macOS before 11.3 allow local users to access the user’s recent contacts. The Sandbox permissions logic incorrectly authorizes a malicious application to read recent-contact data; Apple has not disclosed the specific check or code path. Execution of a malicious application in the user’s session is required, and the reported impact is limited to disclosure of recent contacts.

The record

CVE
CVE-2021-30750
Published
Sep 8, 2021
Updated
Aug 3, 2024
Vendor
Apple
Product
macOS
Classifications
CWE-276, T1005
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 8, 2021CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 <11.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Apple · macOSversion=unspecified <11.3

Published CVSS scores

5.5NVDCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
4.3NVDAV:N/AC:M/Au:N/C:P/I:N/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.

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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-276Incorrect Default Permissions
T1005Data from Local System

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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