Security readout for executives and security teams
Plain-English summary
CVE-2023-2376 is a reported command injection issue in the Ubiquiti EdgeRouter X web management interface. It requires a highly privileged authenticated user, but could allow serious device compromise if valid admin access is abused. The report is disputed: the vendor reportedly does not accept post-authentication issues as vulnerabilities, and sources note doubts about whether it truly exists.
Executive priority
Prioritize review for EdgeRouter X devices exposed beyond trusted admin networks. The business concern is perimeter device compromise after admin credential misuse. Urgency is reduced by the high-privilege requirement and dispute status, but routers are high-impact assets and should be hardened promptly.
Technical view
The report affects Ubiquiti EdgeRouter X versions up to 2.0.9-hotfix.6. The claimed flaw is command injection through the web management interface’s dpi argument, mapped to CWE-74 and CWE-77. CVSS v4 is 8.6 with network attack vector, low complexity, high privileges required, and high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is most relevant where EdgeRouter X web management is reachable by administrators, especially from untrusted networks. Risk depends heavily on privileged credential control. The sources do not identify unauthenticated exposure, and the CVSS vector indicates high privileges are required.
Exploitation context
VulDB states the exploit was publicly disclosed and may be used. The provided sources do not show CISA KEV listing or confirmed active exploitation. Treat public disclosure as a risk signal, but do not assume in-the-wild exploitation from the available evidence.
Researcher notes
Evidence is mainly from VulDB and CVE records. The issue is described as post-authentication command injection in a dpi argument, but sources explicitly note doubts and a vendor position rejecting post-authentication reports. No source in the bundle names a patch or vendor advisory fix.
Mitigation direction
- Check Ubiquiti guidance for affected EdgeRouter X firmware and any recommended updates.
- Restrict web management access to trusted administrative networks only.
- Remove internet exposure for the management interface where possible.
- Review and limit privileged administrator accounts.
- Rotate credentials if unauthorized administrative access is suspected.
- Monitor device logs for suspicious web management or DPI-related configuration activity.
Validation and detection
- Inventory EdgeRouter X devices and firmware versions.
- Confirm whether versions are 2.0.9-hotfix.0 through 2.0.9-hotfix.6.
- Verify web management exposure from internal, VPN, and internet paths.
- Review privileged account usage and recent administrative sessions.
- Check logs for unexpected DPI or web management configuration changes.
- Track vendor and CVE updates because the report 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-2023-2376 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-227652 | Ubiquiti EdgeRouter X Web Management command injectionCVE reference, VulDB · vdb-entry, technical-description
- VDB-227652 | CTI Indicators (IOB, IOC, TTP, IOA)CVE reference, VulDB · signature, permissions-required
- CVE-2023-2376 | CVE Analysis and ReportCVE reference, VulDB · third-party-advisory
- Submit #114078 | Command injection at the web management interface of EdgeRouter-x(8)CVE reference, VulDB · third-party-advisory
- https://github.com/leetsun/IoT/tree/main/EdgeRouterX/CI/8CVE reference, VulDB · broken-link, exploit
- https://vuldb.com/?id.227652CVE reference, CVE · vdb-entry, technical-description
- https://vuldb.com/?ctiid.227652CVE 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.