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Vulnerabilities

Vulnerability · CVE-2023-36420

CVE-2023-36420 is listed by Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability.

Published Oct 10, 2023 · catalog updated Jun 17, 2026 · odbc driver for sql server

Last checked Nov 2, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2023-36420. EPSS is 0.83%. Act only if a listed version of odbc driver for sql server is installed.

Gaps on this record

  • No vendor fix or required action is stored. Compare the linked advisory before you change production.

Same product and reporting

Severity
High7.8
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
0.83%
Remediation
Version ranges on file
Affected products
cpe microsoft/odbc driver for sql server

CVE-2023-36420 is listed by Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • cpe microsoft/odbc driver for sql server< 17.10.5.1
  • cpe microsoft/odbc driver for sql server< 18.3.2.1

How to fix CVE-2023-36420

  • Upgrade

    CVE-2023-36420 lists a fix boundary at 17.10.5.1. Compare the installed build with that boundary before you change production.

  • Version check

    Affected < 17.10.5.1

  • Advisory

    Open the inventory_critical record and follow its fix.

  • Official advisories

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

No confirmed exploitation is on record for CVE-2023-36420. EPSS is 0.83%. Act only if a listed version of odbc driver for sql server is installed.

Which versions are affected?

Compare what you have installed with microsoft/odbc driver for sql server < 17.10.5.1; microsoft/odbc driver for sql server < 18.3.2.1. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-415: Double Free. EPSS 0.83%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Technology hubs

Microsoft SQL Server security

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Oct 10, 2023 · Monitored products — critical

    Detected

    CVE-2023-36420 is listed by Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability.

  2. Jun 17, 2026 · Monitored products — critical

    Updated

    CVE-2023-36420 is listed by Microsoft ODBC Driver for SQL Server Remote Code Execution Vulnerability.

Sources

References

Freshness

Last verified in this catalog Nov 2, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • Monitored products — criticalNov 2, 2026