CVE Tools
Sign in

CVE-2026-65669

Microsoft SQL Server Elevation of Privilege Vulnerability

Published: Sep 8, 2026Updated: Sep 9, 2026 Sources: CVE List NVDCWE-74
9.6CRITICAL
NVD MITRE
EPSS Score
0.7%
Top 47.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

Improper neutralization of special elements in output used by a downstream component ('injection') in SQL Server allows an unauthorized attacker to elevate privileges over a network.

In plain language

AI Act now

CVE-2026-65669 is a serious privilege-escalation bug in SQL Server Management Studio 22, and small businesses should fix it quickly by updating to 22.8.2 if they use this software.

Executive summary

CVE-2026-65669 is an elevation of privilege issue in SQL Server Management Studio 22 caused by “injection” (improper neutralization of special elements in output used by a downstream component), enabling an unauthorized attacker to gain higher privileges over the network.

If affected, business impact
Full SQL/management accessData theft or tamperingSystem disruptionPotential ransomware risk

What to do now

  1. Check your installation of SQL Server Management Studio 22 and confirm the version number you are running.
  2. If you are below 22.8.2, upgrade SQL Server Management Studio 22 to version 22.8.2 (this is the fixed version).
  3. After updating, re-check the displayed SSMS version and ensure no older SSMS copies remain installed on the business-critical machines.
Patch / advisory Usually a quick update

CVSS Vector Breakdown

AV:NAC:LPR:NUI:RS:CC:HI:HA:H
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:RUser Interaction
Required
Scope
S:CScope
Changed
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:HAvailability
High
Open in CVSS calculator →

Weaknesses

CWE-74

Affected Products

Microsoft
commercial·US
SQL Server Management Studio 22On-prem
Operating Systems / windows

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
Is your org exposed to CVE-2026-65669?We can run the check for you — a free external exposure review, no install. Check my exposure

Attack Graph

Products CVE Techniques Tactics

Click technique nodes for MITRE ATT&CK details · drag to pan · Ctrl/⌘ + scroll to zoom, or go fullscreen.

MITRE ATT&CK

2 techniques
Execution
Initial Access
View detailed technique mapping

References

https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-65669
msrc.microsoft.com
News mentions
6

Unlock Complete Vulnerability Intelligence

Get the full picture for CVE-2026-65669 and every CVE in our database. Create a free account — no credit card required.

Create Free Account
Plain-language analysis
Impact assessment and exploitation scenario in plain English
Attack graph visualization
Interactive attack path and kill chain mapping
Exploit details & PoC links
ExploitDB, Metasploit, GitHub PoCs with direct links
Nuclei scanner templates
Ready-to-use vulnerability scanner templates
Full remediation guide
Patch instructions, workarounds, and compliance impact
Interactive AI chat
Ask questions about this vulnerability in natural language
Related vulnerabilities
Semantically similar CVEs and attack patterns
REST API & MCP access
Integrate vulnerability data into your workflows