CVE-2026-66305
7.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N/E:U/RL:O/RC:C
Summary
Use of client-side authentication in Skype for Business allows an authorized attacker to perform spoofing over a network.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Microsoft | Skype for Business Server 2015 CU13 | 9319.0 < 6.0.9319.885 | affected |
| Microsoft | Skype for Business Server 2019 CU8 | 2046.0 < 7.0.2046.569 | affected |
| Microsoft | Skype for Business Server Subscription Edition CU1 | 2046.0 < 7.0.2046.879 | affected |
Weaknesses
- CWE-603: CWE-603: Use of Client-Side Authentication
References
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