CVE-2023-36802
Exploited in the wild. In CISA KEV since 2023‑09‑12. Fixed versions are out.
What to do
Find your product and version, then upgrade to the build on the right.
- Microsoft Windows 10 Version 1809Affected: ≥ 10.0.17763.0, < 10.0.17763.4851Upgrade to: 10.0.17763.4851Affected: ≥ 10.0.19043.0, < 10.0.19044.3448Upgrade to: 10.0.19044.3448Affected: ≥ 10.0.19045.0, < 10.0.19045.3448Upgrade to: 10.0.19045.3448Stated by: CVE record
- Microsoft Windows Server 2019Affected: ≥ 10.0.17763.0, < 10.0.17763.4851Upgrade to: 10.0.17763.4851Stated by: CVE record
- Microsoft Windows Server 2022Affected: ≥ 10.0.20348.0, < 10.0.20348.1970Upgrade to: 10.0.20348.1970Stated by: CVE record
- Microsoft Windows 11 version 21H2Affected: ≥ 10.0.0, < 10.0.22000.2416Upgrade to: 10.0.22000.2416Affected: ≥ 10.0.22621.0, < 10.0.22621.2283Upgrade to: 10.0.22621.2283Stated by: CVE record
Versions as the sources state them. Full version matrix after sign-in
Coverage timeline
0 publishersAdded to CISA KEV catalog
Sourced from public security reporting — each date is when it was published, not when it happened.
What it is
From the CVE record
Microsoft Streaming Service Proxy Elevation of Privilege Vulnerability
In plain language
No plain-language summary for this CVE yet.
Exploitation
Where each signal puts this CVE on the scale from published to confirmed exploited.
- CISA KEV
Listed as exploited in the wild since 2023-09-12.
US federal agencies must remediate by 2023-10-03.
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- Public exploits
1 source with a proof of concept or module.
Exploit links, PoCs and Metasploit modules after sign-in- EPSS
28% chance of exploitation activity in the next 30 days, which ranks it in the 98th percentile of scored CVEs.
Exploit Prediction Scoring System, FIRST.org. A probability, not a confirmation.
Lifecycle
The patch came 129 days before any public exploit.
- OpenVAS check added
- EPSS band changehigh → moderate
- Public exploit / PoCsource: github-poc
- Patch availablerecord updated
- Added to CISA KEVpublished, weakness classified, att&ck mapped
Affected products
And 20 more affected products. See all after sign-in
Technical detail
CVSS 3.1 vector
Open in the CVSS calculatorCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Scored 7.8 by NVD.
How it is reached
- Attack Vector LocalRequires local access to the vulnerable system (e.g. local login, malicious file)
- Attack Complexity LowNo special conditions — the attack can be reliably reproduced
- Privileges Required LowRequires basic user-level privileges
- User Interaction NoneNo user interaction needed — fully automated exploitation
Scope
- Scope UnchangedImpact is limited to the vulnerable component itself
Impact if exploited
- Confidentiality HighTotal information disclosure — all data in the component is compromised
- Integrity HighTotal loss of integrity — attacker can modify any data in the component
- Availability HighTotal denial of service — the component is completely unavailable
Weaknesses
ATT&CK techniques
Mapped from the weaknesses above (CWE to ATT&CK), not observed in attacks.
- Initial AccessT1190Exploit Public-Facing Applicationhigh confidence
- Privilege EscalationT1068Exploitation for Privilege Escalationhigh confidence
Sources
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We'll flag the next CVE, public exploit or patch for Windows 10 Version 1809, not every advisory. This one: actively exploited.
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- Exploit links, proofs of concept and Metasploit modules
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