VDB

CVE-2026-66302

CVE-2026-66302 PUBLISHED CVSS 9.8 CRITICAL

Reported by microsoft · Published September 8, 2026

External control of file name or path in Skype for Business allows an unauthorized attacker to execute code over a network.

Risk Scores

CVSS 3.1
9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C

Affected Products

VendorProductVersions
MicrosoftSkype for Business Server 2015 CU139319.0
MicrosoftSkype for Business Server 2019 CU82046.0
MicrosoftSkype for Business Server Subscription Edition CU12046.0
MicrosoftSkype for Business Server 2015 CU139319.0
MicrosoftSkype for Business Server Subscription Edition CU12046.0
microsoftskype_for_business_server_20192046.0
microsoftskype_for_business_server_subscription_edition2046.0
microsoftskype_for_business_server_20159319.0
MicrosoftSkype for Business Server 2019 CU82046.0

Timeline

  • Sep 8, 2026 CVE Published
  • Sep 9, 2026 Coalition ESS Score
  • Sep 9, 2026 Security Advisory
  • Sep 9, 2026 CVE Updated

References

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