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CVE-2017-11786

8.8 highEPSS 9.4%

Skype for Business in Microsoft Lync 2013 SP1 and Skype for Business 2016 allows an attacker to steal an authentication hash that can be reused elsewhere, due to how Skype for Business handles authentication requests, aka "Skype for Business Elevation of Privilege Vulnerability."

Severity

CVSS 3.0

8.8 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
EPSS
9.4% chance of exploitation in the next 30 days; higher than 95% of CVEs (scores of 2026-10-31)
CWE
CWE-294
Published
Modified
Record from
the NVD, synced

Affected

References

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