Microsoft SQL Server Zero-Day Vulnerability Allows Attackers to Escalate Privileges
ID: b2a2b436-50c3-5d06-a272-9b152351a498
STIX ID: report--b2a2b436-50c3-5d06-a272-9b152351a498
Feed Name: cybersecurityNews.com
Threat Score
Microsoft disclosed a critical zero-day (CVE-2026-21262) in SQL Server that allows authenticated users to escalate to sysadmin privileges (CVSS v3.1 8.8). The flaw is publicly disclosed but not yet observed exploited; Microsoft has released patches for SQL Server 2016–2025 and recommends immediate patching, auditing permissions, and monitoring for anomalous privilege escalations.
Your team is not currently subscribed to this feed. You must subscribe to it in order to see this post.