Actively exploited · Published Sep 12, 2023 · Assigned by microsoft
CVE-2023-36802Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
High 7.8 Exploited
In plain English
A high-severity use-after-free in Windows 10 Version 1809 from Microsoft. Attackers are actively exploiting it in the wild (listed by CISA on September 12, 2023). The chance it is exploited in the next 30 days is estimated at 27.9% (higher than 98% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA guidance
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
Federal agencies must remediate by Oct 3, 2023.
Official description
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Microsoft | Windows 10 Version 1809 | 10.0.17763.0 – before 10.0.17763.4851 |
| Microsoft | Windows 10 Version 1809 | 10.0.0 – before 10.0.17763.4851 |
| Microsoft | Windows Server 2019 | 10.0.17763.0 – before 10.0.17763.4851 |
| Microsoft | Windows Server 2019 (Server Core installation) | 10.0.17763.0 – before 10.0.17763.4851 |
| Microsoft | Windows Server 2022 | 10.0.20348.0 – before 10.0.20348.1970 |
| Microsoft | Windows 11 version 21H2 | 10.0.0 – before 10.0.22000.2416 |
| Microsoft | Windows 10 Version 21H2 | 10.0.19043.0 – before 10.0.19044.3448 |
| Microsoft | Windows 11 version 22H2 | 10.0.22621.0 – before 10.0.22621.2283 |
| Microsoft | Windows 10 Version 22H2 | 10.0.19045.0 – before 10.0.19045.3448 |
Weakness: CWE-416 · Vector: 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