CVE-2026-503437.8HighCWE-269
CVE-2026-50343: Microsoft Windows 10 Version 1809 vulnerability
Microsoft · Windows 10 Version 1809
Vendor fix available · Affected: Microsoft Windows 10 Version 1809 · Exploitation: public proof of concept (unverified)
ExploitationProof of concept public
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public1 public GitHub repository (unverified), listed by PoC-in-GitHub3 Jun
- Not established: not seen
0.3%probability of exploitation in the next 30 days
22nd percentile
050100
Higher than 22% of scored CVEs
7.8HighCVSS 3.1
LowMediumHighCrit.
DescriptionNVD
Improper privilege management in Microsoft Install Service allows an authorized attacker to elevate privileges locally.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
What changed
- PoC-in-GitHub lists 1 public GitHub repository (unverified) PoC-in-GitHub
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 4 Aug.
- Public Exploit Code Released for CVE-2026-50343, a Windows InstallService Flaw That Grants SYSTEM PrivilegesSecurityOnline · first in our coverage
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