HOMEVULNERABILITIESCVE-2021-25645
MEDIUM

CVE-2021-25645

CWE-312Published: May 10, 2021· Updated: Jun 17, 2026

4.4
CVSS v3.1

Official Description

An issue was discovered in Couchbase Server before 6.0.5, 6.1.x through 6.5.x before 6.5.2, and 6.6.x before 6.6.1. An internal user with administrator privileges, @ns_server, leaks credentials in cleartext in the cbcollect_info.log, debug.log, ns_couchdb.log, indexer.log, and stats.log files. NOTE: updating the product does not automatically address leaks that occurred in the past.

NVD Source

Technical Analysis

CVE-2021-25645 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), with a CVSS base score of 4.4.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.High
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N

Affected Vendors & Products

couchbase1 product(s)
couchbase server
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

NO KNOWN EXPLOITNo public exploit confirmed at this time
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

ADVISORYhttps://www.couchbase.com/downloads
ADVISORYhttps://www.couchbase.com/resources/security#SecurityAlerts
ADVISORYhttps://www.couchbase.com/downloads
ADVISORYhttps://www.couchbase.com/resources/security#SecurityAlerts

All References (4)

→
https://www.couchbase.com/downloadsProduct · Vendor Advisory
→
https://www.couchbase.com/resources/security#SecurityAlertsVendor Advisory
→
https://www.couchbase.com/downloadsProduct · Vendor Advisory
→
https://www.couchbase.com/resources/security#SecurityAlertsVendor Advisory

Quick Facts

CVE IDCVE-2021-25645
CVSS Score4.4 / 10
SeverityMEDIUM
WeaknessCWE-312
CISA KEVNo
Affected1 vendor(s)
PublishedMay 10, 2021

Related CVEs (CWE-312)

CVE-2021-36782
9.9
CVE-2023-2809
9.8
CVE-2019-11384
9.8
CVE-2019-19228
9.8
CVE-2014-5433
9.8
CVE-2023-31069
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2021-25645 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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