Microsoft Streaming Service Proxy Privilege Escalation Vulnerability
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
What happened
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
CISA lists it as exploited, added 12 Sep 2023.
Does it affect you
Names Microsoft Windows Server. Enter the product and version you run to place it against the affected range the vendor published.
What to do
- Apply the vendor patch named in this advisory.
msrc.microsoft.com - Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
cisa.gov
CISA’s notes for this entry:
Affected, as published to NVD
- ms-winserver
- Microsoft Windows Server: everything below 10.0.17763.4851
The record
- NVD status
- Analyzed
- Published
- 12 Sep 2023, last modified 17 Jun 2026 (NVD)
- Severity
- CVSS 3.1 base score 7.8, High — computed here from the vector; NVD states 7.8.
- Vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness
- CWE-416 Use After Free (NVD; names by MITRE)
- Exploitation
- Listed in CISA’s Known Exploited Vulnerabilities catalogue since 12 Sep 2023; federal remediation due 03 Oct 2023. CISA entry
- Exploit probability
- EPSS 27.9%, 98th percentile — FIRST, scored 23 Oct 2026. FIRST EPSS
- Vendor
- Microsoft · Streaming Service Proxy (CISA)
References on the NVD record
- msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802PatchVendor Advisory
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-36802US Government Resource
Sources
The verdict above is computed from the products and versions you entered and the affected ranges the vendor published to NVD. It does not inspect your environment, and this site never reports a product as unaffected: why.