High severity · published Oct 10, 2023
CVE-2023-36789
Skype for Business Remote Code Execution Vulnerability
7.2
CVSS
2.5%
EPSS
No
On KEV
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
High
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.5% · higher than 85% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
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
Affected product
SF
Skype for Business Server 2015 CU13
Microsoft
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2023-36789
CVE.org
https://www.cve.org/CVERecord?id=CVE-2023-36789
Patch
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36789
More from Skype for Business Server 2015 CU13
5.3
CVE-2023-41763
Skype for Business Elevation of Privilege Vulnerability
9.8
CVE-2026-66302
Skype for Business Remote Code Execution Vulnerability
8.8
CVE-2026-70297
Skype for Business Remote Code Execution Vulnerability
8.3
CVE-2026-69646
Skype for Business Spoofing Vulnerability
8.1
CVE-2026-83746
Skype for Business Elevation of Privilege Vulnerability
