VDB

CVE-2026-69646

CVE-2026-69646 PUBLISHED CVSS 8.3 HIGH

Reported by microsoft · Published September 8, 2026

Improper verification of cryptographic signature in Skype for Business allows an unauthorized attacker to perform spoofing over an adjacent network.

Risk Scores

CVSS 3.1
8.3
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L/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 2019 CU82046.0
microsoftskype_for_business_server_20192046.0
MicrosoftSkype for Business Server 2015 CU139319.0
MicrosoftSkype for Business Server Subscription Edition CU12046.0
microsoftskype_for_business_server_subscription_edition2046.0
microsoftskype_for_business_server_20159319.0

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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