How severe is CVE-2025-49015?

CVE-2025-49015 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.

Is CVE-2025-49015 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-49015?

CVE-2025-49015 affects Couchbase .net Sdk. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-49015?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-49015 have an EU (EUVD) identifier?

Yes. CVE-2025-49015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18625.

When was CVE-2025-49015 published?

CVE-2025-49015 was published on 2025-06-18 and last updated on 2026-06-17.

CVE-2025-49015

CVE-2025-49015 is a medium-severity vulnerability in Couchbase .net Sdk with a CVSS 3.x base score of 4.9. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-297.

Key facts

Severity: Medium (CVSS 3.x base score 4.9)
EPSS exploit prediction: 0% (9th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-18625
Weakness: CWE-297
Affected product: Couchbase .net Sdk
Published: 2025-06-18
Last modified: 2026-06-17

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.

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.
How severe is CVE-2025-49015?: CVE-2025-49015 has a CVSS 3.x base score of 4.9, rated medium severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity none, and availability none.
Is CVE-2025-49015 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (9th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-49015?: CVE-2025-49015 affects Couchbase .net Sdk. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-49015?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-49015 have an EU (EUVD) identifier?: Yes. CVE-2025-49015 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-18625.
When was CVE-2025-49015 published?: CVE-2025-49015 was published on 2025-06-18 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:couchbase:.net_sdk:*:*:*:*:*:*:*:*

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