CVE-2023-36802: Microsoft Streaming Service Proxy Privilege Escalation Vulnerability
CVE-2023-36802 · Severity: critical · CVSS 7.8 · Exploited in the wild · Published 2023-09-12
Microsoft Streaming Service Proxy contains a use-after-free vulnerability (CWE-416) that allows for local privilege escalation. An attacker who successfully exploits this vulnerability could gain SYSTEM privileges.
Yes. CVE-2023-36802 is known to be exploited in the wild, first recorded on 12 September 2023. Treat it as urgent.
How severe is CVE-2023-36802?
Critical severity, with a CVSS score of 7.8, published 12 September 2023.
Which products and versions are affected?
Microsoft Windows 10 1809, 21H2, 22H2; Microsoft Windows 11 21H2, 22H2; Microsoft Windows Server 2019 All versions; Microsoft Windows Server 2022 All versions.
Is there a fix for CVE-2023-36802?
A patch was published on 2023-09-12. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2023-36802 attacked?
It is attacked with local access, in an operating system.
Am I affected by CVE-2023-36802?
Check whether you run Microsoft Streaming Service Proxy. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Affected products
Microsoft Windows 10 1809, 21H2, 22H2
Microsoft Windows 11 21H2, 22H2
Microsoft Windows Server 2019 All versions
Microsoft Windows Server 2022 All versions
Timeline
2023-09-12: disclosed
2023-09-12: patched
2023-09-12: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
2023-09-12: exploited: Reported as exploited in the wild at time of publication.