CISA KEV · Known exploitedHigh

CVE-2023-36802

Microsoft Streaming Service Proxy

CVE-2023-36802 affects Microsoft Streaming Service Proxy. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

CVSS: 7.8
EPSS: 26.1%
CISA KEV: Listed
Published: 2023.09.13

PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV

Exploit probability26.1%

Technical severityCVSS 7.8

Vulnerability overview

CVE-2023-36802 affects Microsoft Streaming Service Proxy. Review the CVSS score, exploitation signals, affected versions, remediation status, and linked source material before making a change.

Affected product and versions

Product: Microsoft Streaming Service Proxy
Affected versions: 10.0.17763.0, 10.0.0, 10.0.20348.0, 10.0.19043.0, 10.0.22621.0, 10.0.19045.0, < 10.0.17763.4851, < 10.0.19044.3448, < 10.0.19045.3448, < 10.0.22000.2416, < 10.0.22621.2275, < 10.0.20348.1970
Fixed versions: 10.0.17763.4851, 10.0.19044.3448, 10.0.19045.3448, 10.0.22000.2416, 10.0.22621.2275, 10.0.20348.1970

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

CISA required action

Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Due date: 2023.10.03

1
Identify
Confirm that Microsoft Streaming Service Proxy and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CWE: CWE-416
KEV added: 2023.09.12
Ransomware use: 미확인