CVE-2026-66307 — Skype for Business and Lync Denial of Service Vulnerability

Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a network.

Published: 2026-09-08 · CVSS: 7.5 · CVSS 3.1

Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a network.

Original CVE JSON · STIX 2.1

Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7