CVE-2025-49015

4.9 MEDIUM 0.2% exploit odds Fix listed Crypto Library

What it is

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.

At a glance

Exploitability: Can be exploited over the network with an admin-level account. High risk of data exposure.
Exploit odds: 0.2% chance of exploitation in the next 30 days (EPSS).
Fix: A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

2025-06-18 14:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2026-06-17 09:30 UTC Last updatedMost recent change to the record

Details

Published: 2025-06-18 14:15 UTC
Last modified: 2026-06-17 09:30 UTC
Exploit probability: 0.2% · EPSS, next 30 days
Weakness: CWE-297
Record status: Analyzed

Affected

Couchbase .net Sdk ≤ 3.7.1

Attack profile CVSS 3.1 · 4.9

Attack vector: Network
Complexity: Low
Privileges needed: High
User interaction: None
Scope: Unchanged
Confidentiality: High
Integrity: None
Availability: None

Raw vector

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

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Fix and advisories

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

References

NVD record · CVE.org record