CVE-2026-83945
Microsoft SQL Server Remote Code Execution Vulnerability
MEDIUM
6.6
CVSS Score
Published: October 13, 2026 at 08:36 PM UTC
Updated: October 31, 2026 at 06:05 PM UTC
4 products affected across 1 vendorSQL Server 2022SQL Server 2025Microsoft SQL Server 2025 for X64-based Systems (cu9)
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Severity
MEDIUM6.6
Exploit prediction
EPSS 0.6%
SSVC
No known exploit
Description
Heap-based buffer overflow in SQL Server allows an authorized attacker to execute code over a network.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (1)
Vendor AdvisoryPatch
Source: cverecord
https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-83945SSVC — Action Prioritization
SSVCNo known exploitNot automatableTotal impact
SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.
CVSS
6.6MEDIUMmicrosoft
Vector?
Quick Info
StatusUNDERGOING ANALYSIS
CWE
CWE-122
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