CVE-2026-69646

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

  • Published Sep 8, 2026
  • CVSS 8.3 high
  • 0.3% chance of exploitation in the next 30 days (EPSS)
  • A fix is available

Affected software

CVE-2026-69646 at the National Vulnerability Database