CVE-2025-49015: .net sdk — Fix

Description

The Couchbase .NET SDK (client library) before 3.7.1 does not properly enable hostname verification for TLS certificates. In fact, the SDK was also using IP addresses instead of hostnames due to a configuration option that was incorrectly enabled by default.

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CVSS v3.1 Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-297 CWE-297

Affected Products

Vendor	Product	Versions
couchbase	.net_sdk	< 3.7.1

References

Advisories & Patches

https://www.couchbase.com/alerts/

Other References

https://docs.couchbase.com/server/current/release-notes/relnotes.html https://forums.couchbase.com/tags/security

Frequently Asked Questions

What is CVE-2025-49015? +

The Couchbase .NET SDK (client library) before 3.7.1 does not properly enable hostname verification for TLS certificates. In fact, the SDK was also using IP addresses instead of hostnames due to a configuration option that was incorrectly enabled by default. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2025-49015? +

CVE-2025-49015 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-49015? +

CVE-2025-49015 affects products from couchbase, specifically: .net_sdk. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-49015? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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