Security readout for executives and security teams
Plain-English summary
CVE-2017-12121 lets an authenticated attacker reach the web server on a specific Moxa EDR-810 firmware build and make the device run operating-system commands. The reported impact is full device compromise with root-level control, so exposed management interfaces are the main business concern.
Executive priority
Treat as high priority for environments using this exact Moxa EDR-810 build. A successful attack could hand over root control of a network device, but current evidence in the provided sources does not show known active exploitation.
Technical view
Talos reported command injection in Moxa EDR-810 V4.1 build 17030317. The vulnerable web function accepts attacker-controlled input in the rsakey_name parameter and can execute OS commands, resulting in privilege escalation to a root shell. CVSS 3.0 is 8.8: network-reachable, low complexity, low privileges required, no user interaction.
Likely exposure
Exposure is likely limited to Moxa EDR-810 devices running V4.1 build 17030317 where the web management service is reachable by authenticated users. The provided sources do not identify other affected versions or products.
Exploitation context
The CVE record describes a crafted HTTP POST causing root-level command execution. CISA KEV status is false in the provided bundle, and no cited source here confirms active exploitation in the wild.
Researcher notes
The source bundle names one affected build and one vulnerable web server path/parameter. Avoid expanding scope beyond Moxa EDR-810 V4.1 build 17030317 without additional vendor evidence. Validate exposure by version, reachability, authentication model, and patch status.
Mitigation direction
- Identify Moxa EDR-810 devices and confirm firmware build numbers.
- Check Moxa and Talos guidance for fixed firmware or vendor-approved mitigations.
- Restrict the web management interface to trusted administration networks only.
- Remove any internet exposure for affected management interfaces.
- Review administrative accounts and rotate credentials if exposure is suspected.
Validation and detection
- Inventory devices for Moxa EDR-810 V4.1 build 17030317.
- Verify management web access is blocked from untrusted networks.
- Confirm vendor firmware or mitigation status through official guidance.
- Review device logs for unexpected administrative actions or configuration changes.
- Document residual exposure where patching is delayed.
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.
Execution 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 lookupPrivilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-12121 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
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2017-0473CVE reference · x_refsource_MISC
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.