4.9

CVE-2025-49015: couchbase .net_sdk

CVSS: 4.9v3.1MediumAnalyzed
AliasesGHSA-px2c-r924-mwcc
Published 18-06-2025Last modified 18-06-2025
Open JSON

Vulnerability summary

CVE-2025-49015 is a medium (CVSS 4.9) vulnerability in couchbase .net_sdk. EPSS estimates a 0.23% chance of exploitation in the next 30 days, higher than 12.9% of scored vulnerabilities.

Overall risk
20/100
0100
Low · default modelHow is this calculated?
CVSS score
4.9/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.23%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 18-06-2025
    PublishedVulnerability first disclosed.
  2. 18-06-2025
    Last modifiedVulnerability information updated.

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.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.23%

Chance of exploitation in the next 30 days

Percentile

13%

Versus all other CVEs

30-day change

0.00 pp

From 0.23% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.23%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Couchbase1 product
NuGet1 product
  • CouchbaseNetClientAll versions (No fix recorded) | < 3.7.1

2 vendors · 2 products

References

7 links