Cyber Resilience

CVE-2025-49015

Medium

Published: 18 June 2025

Published
18 June 2025
Modified
09 July 2025
KEV Added
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Patch
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CVSS Score v3.1 4.9 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS Score 0.0016 37.1th percentile
Risk Priority 10 60% EPSS · 20% KEV · 20% CVSS

Summary

CVE-2025-49015 is a medium-severity Improper Validation of Certificate with Host Mismatch (CWE-297) vulnerability in Couchbase .Net Sdk. Its CVSS base score is 4.9 (Medium).

Operationally, ranked at the 37.1th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog.

EU & UK References

Vulnerability details

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.

CWE(s)
CWE-297

Related Threats

No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.

Affected Assets

couchbase
.net sdk
≤ 3.7.1

Mitigating Controls

Likely Mitigating Controls AI

Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.

SC-17 Public Key Infrastructure Certificates
addresses: CWE-297

Approved PKI issuance and trust stores enforce full certificate validation steps including name/hostname checks.

References