Vulnerability in Microsoft Skype
CVE-2017-6517
Microsoft Skype 7.16.0.102 contains a vulnerability that could allow an unauthenticated, remote attacker to execute arbitrary code on the targeted system. This vulnerability exists due to the way .dll files are loaded by Skype. It allows an attacker to load a .dll of the attacker's choosing that could execute arbitrary code without the user's knowledge.The specific flaw exists within the handling of DLL (api-ms-win-core-winrt-string-l1-1-0.dll) loading by the Skype.exe process.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.463 (98.8th percentile), scored .
Moderate probability of exploitation in the next 30 days — watch for active exploitation reports. 99th percentile — 98.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.463 · newest: 0.463 · change: 0.000
Affected products
- Microsoft Skype — versions 7.16.0.102
Weakness classification (CWE)
References
- seclists.org/fulldisclosure/2017/Mar/44 (mailing-list, Mailing List, Third Party Advisory)
- twitter.com/tiger_tigerboy/status/755332687141883904 (Press/Media Coverage)
- twitter.com/vysecurity/status/845013670103003138 (Press/Media Coverage)
- www.securityfocus.com/bid/96969 (VDB Entry, Third Party Advisory, vdb-entry)
- www.securitytracker.com/id/1038209 (vdb-entry)
- technet.microsoft.com/security/cc308575.aspx (Not Applicable)
- packetstormsecurity.com/files/141650/Skype-7.16.0.102-DLL-Hijacking.html (US Government Resource, Exploit, Third Party Advisory)
Frequently asked questions
- What is CVE-2017-6517?
- CVE-2017-6517 is a critical-severity vulnerability in Microsoft Skype, classified under Uncontrolled Search Path Element. CVSS score: 9.8/10. Published 2017-03-23.
- How severe is CVE-2017-6517?
- Critical severity. CVSS v3 base score is 9.8 out of 10.