This vulnerability involves a buffer over-read in the Windows Print Spooler components on Windows 10 Version 1809 (build 10.0.17763.0). An attacker with local authorized access can exploit this flaw to read memory beyond the intended buffer, potentially disclosing sensitive information. The vulnerability is tracked as CWE-126 and has been assigned CVE-2026-50383. Microsoft has published an official fix to remediate this issue.

The impact of this vulnerability is limited to information disclosure. An authorized local attacker can exploit the buffer over-read to access sensitive data in memory. There is no indication of privilege escalation, denial of service, or remote exploitation. The availability impact is low, and integrity is not affected.

An official fix is available from Microsoft for this vulnerability. Users and administrators should apply the Microsoft security update for CVE-2026-50383 as provided in the vendor advisory at https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-50383. No additional mitigation steps are indicated by the vendor.