Security readout for executives and security teams
Plain-English summary
CVE-2023-2374 is a disputed command-injection report affecting Ubiquiti EdgeRouter X web management on listed 2.0.9 hotfix versions. Sources say remote exploitation is possible after high-privilege authentication, and public exploit material was released. Business risk is highest where router administration is internet-reachable or credentials are weak/reused.
Executive priority
Prioritize review if EdgeRouter X devices manage perimeter connectivity or expose web administration. The issue is disputed and post-authentication, but public exploit availability and router impact justify prompt exposure reduction and vendor-guidance checks.
Technical view
The report describes command injection through manipulation of the ecn-down argument in the EdgeRouter X Web Management Interface. CVSS 4.0 is 8.6 with network access, low complexity, no user interaction, but high privileges required. VulDB lists CWE-74 and CWE-77. Vendor reportedly disputes post-authentication issues as accepted vulnerabilities.
Likely exposure
Organizations using Ubiquiti EdgeRouter X versions 2.0.9-hotfix.0 through 2.0.9-hotfix.6 may be exposed, especially if web management is reachable from untrusted networks. Exposure depends on authenticated administrative access, device configuration, and whether the disputed component and parameter are present.
Exploitation context
Public sources state exploit material was released, but CISA KEV status is false in the provided bundle and no cited source confirms active exploitation. The attack appears post-authentication, requiring high privileges. Treat public-facing management interfaces and compromised administrator accounts as the main risk drivers.
Researcher notes
Evidence is largely from VulDB/CVE records and a referenced public exploit location, with the GitHub reference marked broken in the bundle. No vendor patch or workaround is named in the supplied sources. Avoid assuming exploitability beyond authenticated web-management access on listed versions.
Mitigation direction
- Check Ubiquiti guidance for current firmware and vendor-supported remediation.
- Restrict web management access to trusted administrative networks only.
- Remove internet exposure for EdgeRouter X management interfaces.
- Use strong, unique administrator credentials and rotate shared passwords.
- Monitor administrative changes and unexpected router configuration activity.
Validation and detection
- Inventory EdgeRouter X devices and record exact firmware versions.
- Identify whether web management is exposed to untrusted networks.
- Confirm administrative access paths are restricted by network controls.
- Review router administrative logs for unusual authenticated activity.
- Track vendor and CVE updates because the vulnerability is disputed.
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-74: 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 lookupCWE-77: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. 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 lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2023-2374 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
- High
- CVSS
- 8.6 (4.0)
- Known Exploited
- No
- Published
Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
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
4 official scoresWe 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:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P——VulDBAV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR6.410VulDBCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R1.25.9VulDBCVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R1.25.9VulDBVulnerability scoring details
Base CVSS 4.0 score
8.6HighVector: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Base CVSS 3.1 score
7.2HighVector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 3.0 score
7.2HighVector: CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H/E:P/RL:X/RC:R
Base CVSS 2.0 score
8.3HighVector: AV:N/AC:L/Au:M/C:C/I:C/A:C/E:POC/RL:ND/RC:UR
Vulnerability timeline
Timeline events are normalized from CVE metadata, CNA source timelines, ADP timelines, and KEV metadata when present.
- Source timelineVulDB
Advisory disclosed
- Source timelineVulDB
CVE reserved
- Source timelineVulDB
VulDB entry created
- CVE reservedCVE Program
The CVE ID was reserved by the assigning CNA.
- CVE publishedCVE Program
The CVE record was published.
- CVE updatedCVE Program
The CVE record metadata indicates this as the latest update time.
- Source timelineVulDB
VulDB entry last update
ADP provider summaries
Source materials
- CVE List V5 sourceCVE List V5
- VDB-227650 | Ubiquiti EdgeRouter X Web Management command injectionCVE reference, VulDB · vdb-entry, technical-description
- VDB-227650 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference, VulDB · signature, permissions-required
- CVE-2023-2374 | CVE Analysis and ReportCVE reference, VulDB · third-party-advisory
- Submit #114075 | Command injection at the web management interface of EdgeRouter-x(6)CVE reference, VulDB · third-party-advisory
- https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/6CVE reference, VulDB · broken-link, exploit
- https://vuldb.com/?id.227650CVE reference, CVE · vdb-entry, technical-description
- https://vuldb.com/?ctiid.227650CVE reference, CVE · signature, permissions-required
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.
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.
Improper Neutralization of Special Elements used in a Command ('Command Injection')
Improper Neutralization of Special Elements used in a Command ('Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.