CVE-2020-3861

Protected filesystem access via improper permissions

Published Feb 27, 2020 · Updated Aug 4, 2024

Improper permissions in Apple iTunes for Windows before 12.10.4 allow local users to access protected parts of the file system. The Mobile Device Service applies faulty permissions logic, but Apple has not disclosed the affected path, object, or precise filesystem operation. Exploitation requires local low-privileged access and bypasses filesystem protections, permitting access beyond the user's normal authorization.

CVSS severity7.1
High
EPSS probability0.40%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper permissions in Apple iTunes for Windows before 12.10.4 allow local users to access protected parts of the file system. The Mobile Device Service applies faulty permissions logic, but Apple has not disclosed the affected path, object, or precise filesystem operation. Exploitation requires local low-privileged access and bypasses filesystem protections, permitting access beyond the user's normal authorization.

The record

CVE
CVE-2020-3861
Published
Feb 27, 2020
Updated
Aug 4, 2024
Vendor
Apple
Product
iTunes for Windows
Classifications
T1068
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Feb 27, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 <iTunes for Windows 12.10.4

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Apple · iTunes for Windowsversion=unspecified <iTunes for Windows 12.10.4

Published CVSS scores

7.1NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
3.6NVDAV:L/AC:L/Au:N/C:P/I:P/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

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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