Microsoft SQL Server Remote Code Execution Vulnerability

CriticalVendor CVSS 9.0 / 10 1 CVE Published Sep 8, 2026 at 7:00 AM UTC

Summary

Out-of-bounds read in SQL Server allows an unauthorized attacker to execute code over a network.

Install KB5122773. Install KB5122771. Install KB5122770. Install KB5122772. Install KB5122768. Install KB5122769.

Update history

SecurityAlert records field-level changes from the point we begin following a bulletin. Earlier vendor changes may not have a field-by-field record.

Sep 27, 2026 at 11:11 PM UTC
- The vendor changed the advisory's last-updated date.
Sep 17, 2026 at 4:00 AM UTC
- The vendor changed the advisory summary.
- CVSS changed from 8.5 to 9.0.

Sep 8, 2026 at 7:00 AM UTC
Published by Microsoft Security Response Center
The publication date reported by the vendor.
Sep 8, 2026 at 7:15 PM UTC
Added to SecurityAlert
We collected the advisory from the official source.
Sep 17, 2026 at 7:00 AM UTC
Updated by Microsoft Security Response Center
The vendor changed the advisory after it was first published.
Oct 28, 2026 at 3:45 AM UTC
Confirmed at the source
Our collector saw this advisory during a later source check.

Details collected from Microsoft Security Response Center.

Official bulletin How SecurityAlert builds this record

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