Medium severity · published Oct 10, 2023
CVE-2023-41763
Skype for Business Elevation of Privilege Vulnerability
In wildKEV
5.3
CVSS
90.5%
EPSS
Yes
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)90.5% · higher than 100% of CVEs
Exploited in the wildYes
CISA KEVListed Oct 10, 2023
Federal remediation dueOct 31, 2023
Ransomware campaign useNot known
Affected products
Which versions
SF
Skype for Business Server 2015 CU13 · Microsoft
9319.0 before 6.0.9319.869 · source: vendor
SF
Skype for Business Server 2019 CU7 · Microsoft
2046.0 before 7.0.246.530 · source: vendor
SF
Skype For Business Server · Microsoft
2015; 2019 · source: NVD
SF
Skype for Business · Microsoft
All versions, or not specified · source: KEV
Affected product
SF
Skype for Business Server 2015 CU13
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-41763
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-41763
CISA KEV catalogue
https://www.cisa.gov/known-exploited-vulnerabilities-catalog
vendor-advisory
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-41763
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