CVE-2023-36802
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
- High 7.8
- Exploited: added to CISA KEV 12 Sep 2023
Description
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Key facts
- Published
- 12 Sep 2023
- Last changed
- 30 Oct 2025
- Assigned by
- microsoft
- KEV added
- 12 Sep 2023
- KEV fix due
- 3 Oct 2023
- EPSS
- 27.909% likely to be exploited in the next 30 days, higher than 98.127% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: no; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 7.8CVSS 3.1, Highfrom the CNA (microsoft)
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 |
|
| Microsoft | Windows 10 Version 1809 |
|
| Microsoft | Windows Server 2019 |
|
| Microsoft | Windows Server 2019 (Server Core installation) |
|
| Microsoft | Windows Server 2022 |
|
| Microsoft | Windows 11 version 21H2 |
|
| Microsoft | Windows 10 Version 21H2 |
|
| Microsoft | Windows 11 version 22H2 |
|
| Microsoft | Windows 10 Version 22H2 |
|
Timeline
- 12 Sep 2023 CVE-2023-36802 added to CISA KEV
- 12 Sep 2023 Added to the CISA KEV catalogue
- 12 Sep 2023 Published