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Vulnerability record · CVE-2016-5720 · published 23 January 2017

CVE-2016-5720: Microsoft skype permissions and access controls vulnerability

Microsoft · Skype

Multiple untrusted search path vulnerabilities in Microsoft Skype allow local users to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) msi.dll, (2) dpapi.dll, or (3) cryptui.dll that is located in the current working directory.

7.8 CVSS 3.0 High EPSS 1.9% · top 21.5% CWE-264 · Permissions and access controls
7.8CVSS 3.0 base score, v2 7.2
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References
17 Jun 2026Last modified by NVD

Description

Multiple untrusted search path vulnerabilities in Microsoft Skype allow local users to execute arbitrary code and conduct DLL hijacking attacks via a Trojan horse (1) msi.dll, (2) dpapi.dll, or (3) cryptui.dll that is located in the current working directory.

CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Affected products

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

References

LinkTags
http://seclists.org/fulldisclosure/2016/Sep/65 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/95859
http://seclists.org/fulldisclosure/2016/Sep/65 Mailing ListThird Party Advisory
http://www.securityfocus.com/bid/95859

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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%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%3.3CVE-2020-24003Microsoft skype vulnerabilityMicrosoft Skype through 8.59.0.77 on macOS has the disable-library-validation entitlement, which allows a local process (with the user's privileges) …EPSS 1.2%5.1CVE-2015-3246libuser userhelper direct /etc/passwd write race conditionlibuser before 0.56.13-8 and 0.60 before 0.60-7, as used by the userhelper program in the usermode package, modifies /etc/passwd directly instead of …KEVEPSS 8.8%analysed

Source: NIST National Vulnerability Database (record CVE-2016-5720), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.