CVE-2023-41763
Medium 5.3 Exploited in the wild (KEV)
Confirmed active exploitation — CISA KEV catalog
- Name
- Microsoft Skype for Business Privilege Escalation Vulnerability
- Added to catalog
- Remediation due date (US federal)
- Required action
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Description
Skype for Business Elevation of Privilege Vulnerability
Metrics
- CVSS 3.1
-
5.3 (MEDIUM)
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N - EPSS — exploit probability
- 90% (percentile: 100) as of 2 November 2026
- CWE
- CWE-918
Affected products
microsoft: skype for business server
References
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-41763 PatchVendor Advisory
- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-41763 PatchVendor Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023… US Government Resource