CVE-2025-46330

Application hang via retrying malformed requests

Published Apr 29, 2025 · Updated Apr 29, 2025

Improper HTTP handling in Snowflake Connector for C/C++ 0.5.0 through 2.1.0 allows local users to hang client applications. The connector's HTTP response handler classifies status code 400 from malformed requests as retryable and repeats the request up to SF_CON_MAX_RETRY times, seven by default. Exploitation requires local low-privileged access to cause a consuming application to issue a malformed request; the bounded impact is a hang until the retries finish.

CVSS severity3.3
Low
EPSS probability0.16%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper HTTP handling in Snowflake Connector for C/C++ 0.5.0 through 2.1.0 allows local users to hang client applications. The connector's HTTP response handler classifies status code 400 from malformed requests as retryable and repeats the request up to SF_CON_MAX_RETRY times, seven by default. Exploitation requires local low-privileged access to cause a consuming application to issue a malformed request; the bounded impact is a hang until the retries finish.

The record

CVE
CVE-2025-46330
Published
Apr 29, 2025
Updated
Apr 29, 2025
Vendor
Snowflake
Product
Snowflake Libsnowflakeclient
Classifications
CWE-573, T1499
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Apr 29, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 29, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 0.5.0, < 2.2.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Snowflake · Snowflake Libsnowflakeclientversion=>= 0.5.0, < 2.2.0

Published CVSS scores

3.3GitHub CNACVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-573Improper Following of Specification by Caller
T1499Endpoint Denial of Service

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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