Security readout for executives and security teams
Plain-English summary
This CVE describes an unauthenticated command injection flaw in multiple NETGEAR routers and gateways. Affected devices running older firmware could allow an attacker on the relevant network path to run commands on the device, risking compromise of confidentiality, integrity, and availability.
Executive priority
Prioritize remediation for affected NETGEAR devices in business, remote-office, or high-trust network positions. Router compromise can undermine network security controls, but current sources do not establish active exploitation.
Technical view
CVE-2017-18762 is pre-authentication command injection affecting listed NETGEAR D-series, R-series, WNDR, and WNR devices before specified firmware versions. CVSS 3.0 is 8.8 with low attack complexity, no privileges, no user interaction, adjacent-network attack vector, and high C/I/A impact.
Likely exposure
Exposure is limited to the named NETGEAR models running firmware older than the fixed versions. The CVSS vector indicates adjacent-network access, not confirmed internet-wide exposure. Validate model, firmware, and management-plane reachability before prioritizing remediation.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The risk remains serious because exploitation requires no authentication and could compromise router control if an attacker reaches the affected interface.
Researcher notes
The source bundle identifies affected models and fixed firmware thresholds but does not provide CWE, exploit details, or deeper root-cause information. Treat claims about exploit availability, internet exposure, or affected products beyond the listed NETGEAR models as unsupported.
Mitigation direction
- Upgrade affected NETGEAR devices to the listed fixed or later firmware versions.
- Use the NETGEAR advisory to confirm firmware for each exact model.
- Replace affected devices that cannot run fixed firmware.
- Reduce management access exposure until firmware status is verified.
Validation and detection
- Inventory NETGEAR router and gateway models in use.
- Record current firmware versions for each listed model.
- Compare versions against the fixed thresholds in the CVE description.
- Confirm whether management interfaces are reachable from untrusted networks.
- Document upgraded, replaced, or accepted-risk devices.
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-2017-18762 mapping review
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Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/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:N/S:U/UI:N2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000051483/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2017-2451CVE 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.