Security readout for executives and security teams
Plain-English summary
This CVE is a pre-authentication command injection flaw in several NETGEAR router models. An unauthenticated attacker on an adjacent network could potentially run commands on vulnerable devices, affecting confidentiality, integrity, and availability. The source data lists fixed firmware thresholds for each affected model.
Executive priority
Treat this as high priority where affected routers remain in use. Pre-authentication command injection on network infrastructure can create material business risk, but the provided evidence does not support claiming known active exploitation.
Technical view
CVE-2017-18736 affects NETGEAR JR6150, R6050, R6220, R6700v2, R6800, R6900v2, and WNDR3700v5 before specified firmware versions. CVSS 3.0 is 8.8 with adjacent-network access, low complexity, no privileges, and no user interaction.
Likely exposure
Exposure is likely limited to organizations or sites still using the listed NETGEAR router models on firmware older than the fixed versions. The CVSS vector indicates adjacent-network attack surface, not confirmed internet-routable exploitation.
Exploitation context
The sources describe unauthenticated pre-authentication command injection, but the CVE is not listed as CISA KEV and the provided bundle does not cite active exploitation evidence.
Researcher notes
Key research gaps are exact vulnerable interface details, exploit availability, and vendor advisory contents beyond the referenced URL. Do not assume affected products beyond the seven models and version ranges listed in the CVE source bundle.
Mitigation direction
- Upgrade affected routers to the fixed firmware version for each model or later.
- Review the NETGEAR advisory for model-specific firmware guidance.
- Remove or replace affected devices that cannot receive fixed firmware.
- Limit untrusted access to networks where affected routers are reachable.
Validation and detection
- Inventory NETGEAR router models across offices, labs, and remote sites.
- Check firmware versions against the affected-version thresholds in the CVE description.
- Confirm whether any listed model remains below its fixed firmware version.
- Document remediation status and exceptions for unsupported or unreachable 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-2017-18736 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/000051519/Security-Advisory-for-Pre-Authentication-Command-Injection-on-Some-Routers-PSV-2017-2142CVE 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.