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…
- 9.8CriticalCVSS base score
- 46.3%Exploitation in 30 daysEPSS · top 1.2% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By mitre
- 16 days later
· 16 days later
Published
- 7 years later
· 7 years later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 3.0 | Critical9.8 | CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 46.3% · top 1.2% of all CVEs (9 Nov 2026)
The list uses the assigner's score when there is one, then CISA's, then NVD's: Critical 9.8.
Affected products
n/a
- affected n/a
References
7
- 20170316 Skype Insecure Library Loading Vulnerability (api-ms-win-core-winrt-string-l1-1-0.dll) (opens in a new tab)mailing-listx_refsource_FULLDISCx_transferred
- https://twitter.com/tiger_tigerboy/status/755332687141883904 (opens in a new tab)x_refsource_MISCx_transferred
- https://twitter.com/vysecurity/status/845013670103003138 (opens in a new tab)x_refsource_MISCx_transferred
- 96969 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- 1038209 (opens in a new tab)vdb-entryx_refsource_SECTRACKx_transferred
- https://technet.microsoft.com/security/cc308575.aspx (opens in a new tab)x_refsource_CONFIRMx_transferred
- http://packetstormsecurity.com/files/141650/Skype-7.16.0.102-DLL-Hijacking.html (opens in a new tab)x_refsource_MISCx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2017-15573 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2017-6517)Record last updated .