Vulnerability · Published May 11, 2021 · Assigned by microsoft
CVE-2021-26422Skype for Business and Lync Remote Code Execution Vulnerability
High 7.2
In plain English
A high-severity security flaw in Microsoft Lync Server 2013 CU10 from Microsoft. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 2.2% (higher than 83% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)2.2%top 17.3% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official description
Skype for Business and Lync Remote Code Execution Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Microsoft Lync Server 2013 CU10 | 8308.0 – before 8308.1144 |
| Microsoft | Skype for Business Server 2019 CU5 | 1.0 – before 2046.369 |
| Microsoft | Skype for Business Server 2015 CU11 | 2015 CU11 – before 9319.606 |