Skype for Business and Lync Denial of Service Vulnerability
view advisory published 2026-09-08
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01
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-66307US | — | — | ||
Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a network. | ||||
02
references
External citations — patches, advisories, analysis.
03
remediations (3)
- FixedSkype for Business Server 2015 CU13
6.0.9319.885:Security Update:https://support.microsoft.com/help/5123301
https://support.microsoft.com/help/5123301 - FixedSkype for Business Server 2019 CU8
7.0.2046.569:Security Update:https://support.microsoft.com/help/5123300
https://support.microsoft.com/help/5123300 - FixedSkype for Business Server Subscription Edition CU1
7.0.2046.879:Security Update:https://support.microsoft.com/help/5123287
https://support.microsoft.com/help/5123287
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