7.1
High
CVE-2026-66305 Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network
Description
Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Skype for Business Server 2015 CU13 6.0 | earliest → < 6.0.9319.885 | 6.0.9319.885 |
| Skype for Business Server 2019 CU8 7.0 | earliest → < 7.0.2046.569 | 7.0.2046.569 |
| Skype for Business Server Subscription Edition CU1 7.0 | earliest → < 7.0.2046.879 | 7.0.2046.879 |
References
- Skype for Business Spoofing Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
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