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Fencer Vulns
medium 6.0

CVE-2023-51662 json

Snowflake Connector .NET does not properly check the Certificate Revocation List (CRL)

published 2023-12-22 2 y ago modified 2026-06-17 4 mo ago also GHSA-hwcc-4cv8-cf3h , EUVD-2023-3228

cvss
6.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 28%
public exploits
0
none known

Summary

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.

Patch / fix

  • nuget Snowflake.Data 2.1.5
  • snowflake snowflake_connector 2.1.5

Exploit prediction

0.35% chance of exploitation in the next 30 days, higher than 28% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 6.0 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L
NVD 3.1 7.5 CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 6.0 CVSS:3.1/AV:A/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:L

Affected packages

ecosystem package affected fixed in
nuget Snowflake.Data
>=2.0.25, <2.1.5
2.1.5

Affected products

  • snowflakedb snowflake-connector-net

Classification

Weakness
  • CWE-295 Improper Certificate Validation

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.