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Status published
Medium
CVE-2021-26421
Skype for Business and Lync Spoofing Vulnerability
Vulnerability Description
Skype for Business and Lync Spoofing Vulnerability
Impact Analysis
Refer to official advisory for detailed impact metrics.
Remediation
Ensure systems are updated to the latest vendor-supplied patch levels.
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Credits & Attribution
No credits recorded in the NVD database.
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Affected Vendor
Microsoft
View all reports →Affected Software
Skype for Business Server 2015 CU11, Microsoft Lync Server 2013 CU10
Vulnerable Versions:
2015 CU11, 8308.0
Timeline
Official Publish:
May 11th, 2021
Last Modified:
August 3rd, 2024
Added to House:
July 21st, 2026
CVSS Vectors
V3:
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:L/A:N/E:U/RL:O/RC:C
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.