CVE-2020-9039Network attack vector

Unauthenticated administrative access via projector REST endpoint

Published Feb 22, 2020 · Updated Aug 4, 2024

Incorrect permissions in Couchbase Server allow remote attackers to access projector and indexer administrative REST APIs without authentication. The projector process exposed /settings without an authentication check, permitting configuration changes and performance-profile collection. Network reachability to an affected service is sufficient, and the consequence is bounded to unauthorized use of the exposed administrative APIs.

CVSS severity9.8
Critical
EPSS probability3.94%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect permissions in Couchbase Server allow remote attackers to access projector and indexer administrative REST APIs without authentication. The projector process exposed /settings without an authentication check, permitting configuration changes and performance-profile collection. Network reachability to an affected service is sufficient, and the consequence is bounded to unauthorized use of the exposed administrative APIs.

The record

CVE
CVE-2020-9039
Published
Feb 22, 2020
Updated
Aug 4, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-276
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 22, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

7.5NIST NVDAV:N/AC:L/Au:N/C:P/I:P/A:P
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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