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Vulnerabilities

Vulnerability · CVE-2024-0056

Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability

Published Jan 9, 2024 · catalog updated Jun 17, 2026 · Microsoft.Data.SqlClient and System.Data.SqlClient SQL

Last checked Nov 8, 2026. A connected source was read within the last 7 days.

Check if you run it

No confirmed exploitation is on record for CVE-2024-0056. EPSS is 1.18%. Act only if a listed version of Microsoft.Data.SqlClient and System.Data.SqlClient SQL is installed.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (Microsoft.Data.SqlClient and System.Data.SqlClient SQL).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
Severity
High8.7
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
1.18%
Remediation
Version ranges on file
Affected products
cpe microsoft/microsoft.data.sqlclient · cpe microsoft/system.data.sqlclient · cpe microsoft/visual studio 2022

Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass 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/microsoft.data.sqlclient< 2.1.7
  • cpe microsoft/microsoft.data.sqlclient< 3.1.5
  • cpe microsoft/microsoft.data.sqlclient< 4.0.5
  • cpe microsoft/microsoft.data.sqlclient< 5.1.3
  • cpe microsoft/system.data.sqlclient< 4.8.6
  • cpe microsoft/visual studio 2022< 17.2.23

How to fix CVE-2024-0056

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-2024-0056. EPSS is 1.18%. Act only if a listed version of Microsoft.Data.SqlClient and System.Data.SqlClient SQL is installed.

Which versions are affected?

Compare what you have installed with microsoft/visual studio 2022 < 17.2.23. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

CWE-319: Cleartext Transmission of Sensitive Information. EPSS 1.18%. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

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. Jan 9, 2024 · Monitored products — critical

    Detected

    Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability

  2. Jun 17, 2026 · Monitored products — critical

    Updated

    Microsoft.Data.SqlClient and System.Data.SqlClient SQL Data Provider Security Feature Bypass Vulnerability

Sources

References

Freshness

Last verified in this catalog Nov 8, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.

  • CVE.orgNov 4, 2026
  • Monitored products — criticalNov 2, 2026