Security readout for executives and security teams
Plain-English summary
Some NETGEAR routers, gateways, and extenders had a pre-login command injection flaw. An attacker on an adjacent network could potentially run system commands without credentials, creating risk to network confidentiality, integrity, and availability.
Executive priority
Treat as a high-priority legacy network-device remediation item. It is not evidenced as actively exploited here, but unauthenticated command execution on routing equipment can affect business connectivity and network trust.
Technical view
CVE-2017-18764 is an unauthenticated pre-authentication command injection issue affecting listed NETGEAR device firmware versions before specified fixed releases. CVSS v3.0 is 8.8 with adjacent network attack vector, low complexity, no privileges, no user interaction, and high C/I/A impact.
Likely exposure
Exposure is most likely where listed NETGEAR models remain deployed with firmware older than the fixed versions. The CVSS vector indicates adjacent network access, so prioritize branch, home-office, lab, guest Wi-Fi, and unmanaged edge devices.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. Risk remains material because exploitation requires no authentication or user interaction and can affect device control and availability.
Researcher notes
The CVE source lists affected models and fixed-version thresholds, but does not provide CWE mapping, detailed vulnerable endpoint information, or exploit telemetry. Avoid assuming internet reachability or active exploitation without additional evidence.
Mitigation direction
- Inventory the listed NETGEAR models across offices, labs, and remote sites.
- Compare each device firmware version against the fixed versions in the advisory.
- Upgrade affected devices to the listed fixed firmware version or later.
- Retire unsupported devices if fixed firmware cannot be applied.
- Check NETGEAR guidance for any model-specific compensating controls.
Validation and detection
- Confirm device model and firmware version from administrative inventory or management UI.
- Match versions against the CVE description and NETGEAR advisory.
- Verify upgraded devices report fixed firmware or later after maintenance.
- Review network inventory for overlooked extenders, gateways, and legacy routers.
- Document exceptions where devices cannot be upgraded or replaced.
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-2017-18764 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/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/000051481/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-Gateways-and-Extenders-PSV-2017-2210CVE 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.