Security readout for executives and security teams
Plain-English summary
Certain NETGEAR routers and extenders have a pre-authentication command injection flaw. An unauthenticated attacker on the required network path could potentially take control of affected devices, disrupting service or compromising traffic and settings. Priority is highest where these devices still run older firmware in offices, branches, home offices, or labs.
Executive priority
Treat as high priority where affected NETGEAR devices remain in use. The risk is device compromise without authentication, but urgency depends on whether vulnerable models are deployed and reachable from untrusted adjacent networks.
Technical view
CVE-2017-18737 is a command injection issue in listed NETGEAR devices before vendor-specified firmware versions. CVSS 3.0 is 8.8 with adjacent-network attack vector, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure applies only to the NETGEAR models and vulnerable firmware versions named in the CVE and NETGEAR advisory. The CVSS vector indicates adjacent-network reachability, not necessarily internet reachability. Asset inventories should specifically check older small-office and home-office router or extender deployments.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The issue is still serious because it is unauthenticated, pre-authentication command injection with high impact, but exploitation should not be claimed without additional cited evidence.
Researcher notes
Affected products include multiple NETGEAR JNR, JR, JWNR, PR, R, WNDR, and WNR models before specific firmware versions. The source bundle gives no CWE, exploit proof, or active exploitation evidence. Analysis should stay tied to vendor model and firmware checks.
Mitigation direction
- Identify affected NETGEAR models in asset inventory and remote-work equipment records.
- Update listed devices to the vendor-fixed firmware versions or later.
- If updates are unavailable, replace affected devices or remove them from sensitive networks.
- Restrict management and device access to trusted local networks only.
- Check NETGEAR advisory for model-specific firmware guidance.
Validation and detection
- Compare device model and firmware version against the NETGEAR advisory.
- Prioritize JNR1010v2, JR6150, JWNR2010v5, PR2000, R6050, R6220, and listed variants.
- Confirm vulnerable devices are not reachable from untrusted adjacent networks.
- Review network monitoring for unusual router configuration changes or outages.
- Document remediation status for each affected hardware asset.
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-2017-18737 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/000051518/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-and-Extenders-PSV-2017-2140CVE 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.