Vulnerability · Published Feb 25, 2021 · Assigned by microsoft
CVE-2021-24099Skype for Business and Lync Denial of Service Vulnerability
Medium 6.5
In plain English
A medium-severity security flaw in Microsoft Lync Server 2013 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 3.2% (higher than 88% of all known vulnerabilities).
Severity (CVSS 3.1)6.5Medium
Exploit odds (30 days)3.2%top 11.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Skype for Business and Lync Denial of Service Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Skype for Business Server 2019 CU2 | 7.0.0 – before publication |
| Microsoft | Skype for Business Server 2015 CU 8 | 2015 CU 8 – before publication |
| Microsoft | Microsoft Lync Server 2013 | 0 – before publication |