CVE-2023-36802
Microsoft Streaming Service Proxy Privilege Escalation Vulnerability
Microsoft Streaming Service Proxy
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Exploitation status
CISA Known Exploited Vulnerabilities
Listed by CISA on 12 September 2023. US federal agencies were required to remediate it by 3 October 2023.
EPSS — exploitation probability
FIRST puts the probability of exploitation activity in the next 30 days at 27.9%, which is higher than 98.1% of all scored vulnerabilities. EPSS is a forecast of activity, not a measure of severity, and it is rescored daily.
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Frequently asked questions
Is CVE-2023-36802 being exploited by ransomware groups?
No ransomware group in this database is currently recorded as exploiting CVE-2023-36802.
What does CVE-2023-36802 affect?
CVE-2023-36802 affects Microsoft Streaming Service Proxy. Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
How severe is CVE-2023-36802?
CVE-2023-36802 is rated HIGH with a CVSS base score of 7.8. EPSS puts the probability of exploitation in the next 30 days at 27.9%, higher than 98.1% of all scored vulnerabilities. It is listed in the CISA Known Exploited Vulnerabilities catalog, with a federal remediation deadline of 3 October 2023.
How should organisations respond to CVE-2023-36802?
Apply the vendor patch for Microsoft Streaming Service Proxy as the first priority, and treat any internet-facing instance as the most urgent. Because this vulnerability is associated with ransomware activity, also review whether the affected systems were reachable before patching, rather than assuming that patching alone closes the incident.