CVE-2026-21262: exploitation status and patch state

CVE-2026-21262 · CVSS 8.8 HIGH · patch available

Improper access control in SQL Server allows an authorized attacker to elevate privileges over a network.

Is CVE-2026-21262 exploited?

• Not in the CISA KEV catalog.
• Public exploit code: none found in monitored sources.

Which products and versions are affected?

No affected package list recorded here yet.

Is there a patch?

• KB5077472
• KB5077470
• KB5077474
• KB5077471
• KB5077473
• KB5077465
• KB5077468
• KB5077469
• KB5077464
• KB5077466

What PlainSec published about CVE-2026-21262

• Microsoft Issues March Patches for 93 Vulnerabilities (2026-03-12)

Primary sources

• NVD record
• Microsoft KB5077472
• Microsoft KB5077470
• Microsoft KB5077474
• Microsoft KB5077471
• Microsoft KB5077473
• Microsoft KB5077465
• Microsoft KB5077468
• Microsoft KB5077469
• Microsoft KB5077464

What this record does not say

• No EPSS score.
• No affected package data.

KEV and EPSS are re-checked daily. Record last updated 2026-08-11.