Exploited vulnerability · CISA KEV

Is CVE-2023-36802 exploited? Yes: in CISA KEV since 12 Sep 2023

Gociux · Microsoft Streaming Service Proxy · data: CISA KEV, CVE record, FIRST EPSS

Yes. CVE-2023-36802, Microsoft Streaming Service Proxy Privilege Escalation Vulnerability, is being exploited in the wild. CISA added it to its Known Exploited Vulnerabilities catalog on 12 Sep 2023, the day it was published. It affects Microsoft Streaming Service Proxy. If you run it, CISA's required action is: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

What it is

Microsoft Streaming Service Proxy contains an unspecified vulnerability that allows for privilege escalation.

What to do

1. Check whether you run it. Look for Streaming Service Proxy in your asset inventory, including appliances and cloud images. Stack check lists every exploited Microsoft CVE at once.
2. Apply the fix. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
3. If you can't patch today, take the affected service off the internet or restrict who can reach it, and check its logs for signs of compromise since 12 Sep 2023.
4. Get told next time. Email alerts when CISA adds a CVE for Microsoft.

References

• msrc.microsoft.com/update-guide/vulnerability/CVE-2023-36802
• nvd.nist.gov/vuln/detail/CVE-2023-36802

Sources: CISA KEV (exploitation, ransomware use, required action, due date), the CVE record (publication date, CVSS, CNA), NVD and FIRST EPSS (live score). More: all KEV additions in September 2023 · Microsoft scorecard · act-now radar.