Security readout for executives and security teams
Plain-English summary
CVE-2017-18767 is a post-authentication command injection issue in multiple NETGEAR routers and gateways. A successfully authenticated, high-privilege user on an adjacent network could potentially run commands on affected devices. The main business risk is older firmware remaining on network edge equipment.
Executive priority
Treat this as a firmware remediation and network management control issue, not an emergency exploitation event based on available sources. Prioritize internet-edge and business-critical sites where affected NETGEAR devices remain in service.
Technical view
The CVE describes command injection by an authenticated user affecting listed NETGEAR D-series and R-series devices before specific firmware versions. CVSS 3.0 is 6.8 with adjacent-network access, low complexity, high privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to organizations or homes still running the named NETGEAR models below the fixed firmware versions. Risk depends heavily on administrative access controls and whether management interfaces are reachable from adjacent networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. The vulnerability is not described as unauthenticated remote exploitation; it requires authentication and high privileges according to the CVSS vector.
Researcher notes
The CVE affected-product fields are not populated, but the description lists specific NETGEAR models and fixed firmware thresholds. No CWE is supplied. Analysis should stay anchored to the NETGEAR advisory and CVE record until additional vendor or exploitation evidence appears.
Mitigation direction
- Upgrade affected NETGEAR devices to the fixed firmware versions or later.
- Review the NETGEAR advisory for model-specific firmware guidance.
- Restrict router management access to trusted administrators and networks.
- Replace unsupported or unpatchable affected devices.
Validation and detection
- Inventory NETGEAR D7800, D8500, R6400, R6700, R7000, R7800, R8000, R8300, and R8500-family devices.
- Compare installed firmware against the fixed versions listed in the CVE description.
- Confirm administrative interfaces are not exposed beyond trusted management networks.
- Review administrative account access for unnecessary or shared privileged 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-2017-18767 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/000051476/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2017-0320CVE 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.