Security readout for executives and security teams
Plain-English summary
Certain older NETGEAR router models can allow a logged-in, highly privileged user to inject operating-system commands. The access requirement lowers broad internet risk, but a successful compromise could fully affect device confidentiality, integrity, and availability.
Executive priority
Treat as a targeted remediation item for legacy edge equipment. Prioritize any affected device that still supports business connectivity or exposes administration beyond trusted staff.
Technical view
CVE-2017-18754 is post-authentication command injection affecting WNDR3700v4 before 1.0.2.88, WNDR4300v1 before 1.0.2.90, and WNR2000v5 before 1.0.0.58. CVSS 3.0 is 6.8, with adjacent attack vector, high privileges required, and high C/I/A impact.
Likely exposure
Exposure is limited to the named NETGEAR models running firmware below the fixed versions. Risk is highest where router administration is reachable by untrusted local or adjacent-network users.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates exploitation requires adjacent network access, high privileges, low complexity, and no user interaction.
Researcher notes
Source evidence identifies affected models and fixed firmware thresholds, but does not provide CWE detail, exploit status, or procedural mitigation beyond vendor advisory context. Avoid assuming broader NETGEAR product impact.
Mitigation direction
- Upgrade WNDR3700v4 to firmware 1.0.2.88 or later.
- Upgrade WNDR4300v1 to firmware 1.0.2.90 or later.
- Upgrade WNR2000v5 to firmware 1.0.0.58 or later.
- Restrict router administration to trusted management networks and administrators.
- Check NETGEAR advisory guidance before applying operational changes.
Validation and detection
- Inventory NETGEAR WNDR3700v4, WNDR4300v1, and WNR2000v5 devices.
- Verify firmware versions meet or exceed the fixed versions.
- Confirm administrative access is not exposed to untrusted adjacent networks.
- Review administrative account access for unnecessary high-privilege users.
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 lookupCVE-2017-18754 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
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
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/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N0.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000051494/Security-Advisory-for-Post-Authentication-Command-Injection-on-Routers-PSV-2017-0329CVE reference · x_refsource_CONFIRM
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.
