6.5
Medium
CVE-2026-66303 Null pointer dereference in Skype for Business allows an authorized attacker to deny service over a network
Description
Null pointer dereference in Skype for Business allows an authorized attacker to deny service 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 and Lync Denial of Service Vulnerability msrc.microsoft.com
Timeline
- Published
- Last modified
Other CVEs of Skype for Business Server 2015 CU13
The 17 CVEs of Skype for Business Server 2015 CU13 →
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CVE-2026-83746
Absolute path traversal in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges…
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CVE-2026-66307
Integer underflow (wrap or wraparound) in Skype for Business allows an unauthorized attacker to deny service over a…
7.5
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