Vulnerability in Microsoft Lync_server
CVE-2021-26421
Skype for Business and Lync Spoofing Vulnerability
EPSS: 0.014 (69.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N.
Affected products
- Microsoft Lync_server — versions 2013
- Microsoft Lync Server 2013 Cu10 — versions 8308.0
- Microsoft Skype_for_business_server — versions 2015
- Microsoft Skype For Business Server 2015 Cu11 — versions 2015 CU11
References
- secure@microsoft.com (Patch, x_refsource_MISC, Vendor Advisory)
Frequently asked questions
- What is CVE-2021-26421?
- CVE-2021-26421 is a medium-severity vulnerability in Microsoft Lync_server. CVSS score: 6.5/10. Published 2021-05-11.
- How severe is CVE-2021-26421?
- Medium severity. CVSS v3 base score is 6.5 out of 10.