CVE-2023-41763 on CISA KEV

Skype for Business Elevation of Privilege Vulnerability

01What CISA says about this vulnerability

Skype for Business Elevation of Privilege Vulnerability

02Required action — verbatim from CISA

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

03Notes & references

• msrc.microsoft.com — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-41763

04SARA's analyst layer — why this matters

This vulnerability is currently on the CISA KEV list, which CISA only adds CVEs to when there is reliable evidence of active exploitation in the wild. For federal civilian agencies, BOD 22-01 requires remediation by the due date above. For everyone else, KEV is the strongest "patch immediately" signal you can get from public threat intel.

05Affected products (summary)

Vendor	Product	Versions
Microsoft	Skype for Business Server 2015 CU13	9319.0
Microsoft	Skype for Business Server 2019 CU7	2046.0

06Detection

Open the Sigma generator with a pre-filled prompt for this CVE to draft a starting detection:

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