Apple macOS up to 10.15.2 wifivelocityd default permission

CVSS Meta Temp Score
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CTI Interest Score
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A vulnerability, which was classified as critical, has been found in Apple macOS up to 10.15.2 (Operating System). Affected by this issue is some unknown processing of the component wifivelocityd. The manipulation with an unknown input leads to a default permission vulnerability. Using CWE to declare the problem leads to CWE-276. During installation, installed file permissions are set to allow anyone to modify those files. Impacted is confidentiality, integrity, and availability. CVE summarizes:

The issue was addressed with improved permissions logic. This issue is fixed in iOS 13.3.1 and iPadOS 13.3.1, macOS Catalina 10.15.3, tvOS 13.3.1, watchOS 6.1.2. An application may be able to execute arbitrary code with system privileges.

The weakness was published 01/28/2020 as HT210919 as confirmed advisory (Website). The advisory is available at This vulnerability is handled as CVE-2020-3838. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available. This vulnerability is assigned to T1222 by the MITRE ATT&CK project. The advisory points out:

The issue was addressed with improved permissions logic.

Upgrading to version 10.15.3 eliminates this vulnerability. A possible mitigation has been published immediately after the disclosure of the vulnerability.







CPE 2.3info

CPE 2.2info


VulDB CVSS-B Score: 🔍
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VulDB Meta Base Score: 8.2
VulDB Meta Temp Score: 8.0

VulDB Base Score: 8.6
VulDB Temp Score: 8.2
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NVD Base Score: 7.8
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Class: Default permission
CWE: CWE-276 / CWE-266

Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

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Threat Intelligenceinfo

Interest: 🔍
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Recommended: Upgrade
Status: 🔍

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Upgrade: macOS 10.15.3


12/18/2019 🔍
01/28/2020 +41 days 🔍
01/28/2020 +0 days 🔍
02/28/2020 +31 days 🔍
04/06/2024 +1499 days 🔍



Advisory: HT210919
Status: Confirmed

CVE: CVE-2020-3838 (🔍)
scip Labs:


Created: 02/28/2020 01:24 PM
Updated: 04/06/2024 01:06 PM
Changes: 02/28/2020 01:24 PM (46), 02/28/2020 01:29 PM (17), 04/06/2024 01:06 PM (18)
Complete: 🔍
Cache ID: 44:7CE:40


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