What’s Vulnerable › Vulnerabilities

CVE-2023-51662: Snowflake Connector .NET does not properly check the Certificate Revocation List (CRL)

• Severity: high (CVSS 7.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-12-22 · updated 2026-06-17
• Weakness: CWE-295

Description

The Snowflake .NET driver provides an interface to the Microsoft .NET open source software framework for developing applications. Snowflake recently received a report about a vulnerability in the Snowflake Connector .NET where the checks against the Certificate Revocation List (CRL) were not performed where the insecureMode flag was set to false, which is the default setting. The vulnerability affects versions between 2.0.25 and 2.1.4 (inclusive). Snowflake fixed the issue in version 2.1.5.

Affected products

• snowflakedb snowflake-connector-python: from 2.0.25 before 2.1.5 — fixed in 2.1.5

How to fix

Upgrade to a fixed version: snowflakedb snowflake-connector-python 2.1.5. Check the vendor advisory for mitigations.

References

• https://docs.snowflake.com/release-notes/clients-drivers/dotnet-2023#version-2-1-5-december-18-2023
• https://github.com/snowflakedb/snowflake-connector-net/security/advisories/GHSA-hwcc-4cv8-cf3h
• https://docs.snowflake.com/release-notes/clients-drivers/dotnet-2023#version-2-1-5-december-18-2023
• https://github.com/snowflakedb/snowflake-connector-net/security/advisories/GHSA-hwcc-4cv8-cf3h

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