Security readout for executives and security teams
Plain-English summary
CVE-2023-45874 is a Couchbase Server denial-of-service issue affecting versions through 7.2.2. A user with data-reader access may disrupt reader threads, potentially causing service degradation or outage. It does not indicate data theft or tampering, but could affect application availability.
Executive priority
Treat as a controlled availability risk, not an emergency absent exploitation evidence. Prioritize remediation for internet-adjacent, business-critical, or broadly shared Couchbase clusters; otherwise handle through the normal vulnerability patch cycle while tightening reader access.
Technical view
The CVE describes a CWE-400 resource-consumption flaw in Couchbase Server through 7.2.2. CVSS 3.1 is 4.3: network reachable, low complexity, low privileges required, no user interaction, and limited availability impact only. The public bundle does not provide implementation details or a confirmed fixed version.
Likely exposure
Exposure is most relevant where Couchbase Server through 7.2.2 is deployed and data-reader users can access affected services over the network. Risk is higher for production clusters supporting customer-facing applications or environments with many delegated reader accounts.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. Exploitation requires at least low-privileged authenticated access, specifically a data-reader capability, and appears limited to availability impact.
Researcher notes
Public details are sparse. The affected metadata in the bundle is not fully populated, but the description names Couchbase Server through 7.2.2. Avoid assuming exploitability beyond the CVSS vector and stated data-reader denial-of-service condition.
Mitigation direction
- Check Couchbase alerts and release notes for vendor-confirmed fixed versions or workarounds.
- Upgrade affected Couchbase Server deployments if Couchbase identifies a fixed release.
- Restrict data-reader accounts to trusted users and least-required scopes.
- Limit network access to Couchbase services from untrusted segments.
- Monitor cluster health and reader-thread availability until remediation is complete.
Validation and detection
- Inventory Couchbase Server versions and flag deployments through 7.2.2.
- Review assigned data-reader roles and remove unnecessary access.
- Check monitoring for reader-thread outages or unexplained availability degradation.
- Confirm whether vendor release notes or alerts mention this CVE.
- Document affected clusters, compensating controls, and remediation status.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-400: Exact CWE lookup
Use the exact CWE identifier as the starting point before reviewing related ATT&CK behavior. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2023-45874 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Medium
- CVSS
- 4.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L2.81.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
4.3MediumVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://forums.couchbase.com/tags/securityCVE reference
- https://docs.couchbase.com/server/current/release-notes/relnotes.htmlCVE reference
- https://www.couchbase.com/alerts/CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Uncontrolled Resource Consumption
Uncontrolled Resource Consumption represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.