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Vulnerability record · CVE-2020-24003 · published 11 January 2021

CVE-2020-24003: Microsoft skype vulnerability

Microsoft · Skype

Microsoft Skype through 8.59.0.77 on macOS has the disable-library-validation entitlement, which allows a local process (with the user's privileges) to obtain unprompted microphone and camera access by loading a crafted library and thereby inheriting Skype Client's microphone and camera access.

3.3 CVSS 3.1 Low EPSS 1.2% · top 34.0%
3.3CVSS 3.1 base score, v2 2.1
1.2%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

Microsoft Skype through 8.59.0.77 on macOS has the disable-library-validation entitlement, which allows a local process (with the user's privileges) to obtain unprompted microphone and camera access by loading a crafted library and thereby inheriting Skype Client's microphone and camera access.

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.hdwsec.fr/blog/20200608-skype/ ExploitThird Party Advisory
https://www.hdwsec.fr/blog/20200608-skype/ ExploitThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

9.8CVE-2017-6517Microsoft Skype DLL search path hijacking allows remote code executionMicrosoft Skype 7.16.0.102 loads the DLL api-ms-win-core-winrt-string-l1-1-0.dll in an uncontrolled manner, allowing an attacker to place a malicious…EPSS 46%analysed8.8CVE-2017-9948Microsoft skype memory buffer overflow vulnerabilityA stack buffer overflow vulnerability has been discovered in Microsoft Skype 7.2, 7.35, and 7.36 before 7.37, involving MSFTEDIT.DLL mishandling of r…EPSS 6.4%7.8CVE-2018-0594Microsoft skype untrusted search path vulnerabilityUntrusted search path vulnerability in Skype for Windows allows an attacker to gain privileges via a Trojan horse DLL in an unspecified directory.EPSS 5.5%7.8CVE-2018-0595Microsoft skype untrusted search path vulnerabilityUntrusted search path vulnerability in the installer of Skype for Windows allows an attacker to gain privileges via a Trojan horse DLL in an unspecif…EPSS 5.5%7.8CVE-2016-5720Microsoft skype permissions and access controls vulnerabilityMultiple untrusted search path vulnerabilities in Microsoft Skype allow local users to execute arbitrary code and conduct DLL hijacking attacks via a…EPSS 1.9%5.9CVE-2019-0932Microsoft skype vulnerabilityAn information disclosure vulnerability exists in Skype for Android, aka 'Skype for Android Information Disclosure Vulnerability'.EPSS 4.9%4.6CVE-2019-0622Microsoft skype improper authentication vulnerabilityAn elevation of privilege vulnerability exists when Skype for Andriod fails to properly handle specific authentication requests, aka "Skype for Andro…EPSS 2.0%

Source: NIST National Vulnerability Database (record CVE-2020-24003), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.