Security readout for executives and security teams
Plain-English summary
This CVE covers command injection in certain NETGEAR routers. Affected devices may allow an attacker with the required local attack position to run unintended commands, creating risk to confidentiality, integrity, and availability. The sources identify fixed firmware thresholds for listed models.
Executive priority
Prioritize remediation where affected routers protect business networks or branch connectivity. The issue is high severity because command injection can compromise the device, but the provided evidence does not establish active exploitation or internet-remote reachability.
Technical view
CVE-2017-18786 is a command injection vulnerability in specified NETGEAR router models before named firmware versions. CVSS 3.0 is 8.4 with local attack vector, low complexity, no privileges, no user interaction, and high C/I/A impact. The bundle provides no CWE, exploit details, or attack path beyond command injection.
Likely exposure
Exposure is limited to listed NETGEAR models running firmware older than the advisory’s fixed versions: D6200, JNR1010v2, JR6150, JWNR2010v5, PR2000, R6050, WNR1000v4, WNR2020, and WNR2050.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates local attack vector, not confirmed internet-remote exploitation. Treat exploitability details as incomplete unless NETGEAR or another cited source provides more context.
Researcher notes
The vendor and CVE records give affected model and version boundaries but limited technical detail. Validation should focus on asset identification, firmware comparison, management-plane exposure, and whether any local access assumptions apply in the target environment.
Mitigation direction
- Upgrade affected routers to firmware at or above the fixed versions named by NETGEAR.
- Restrict router management access to trusted administrative networks.
- Replace or isolate devices that cannot be updated to non-affected firmware.
- Check NETGEAR guidance for model-specific update and hardening instructions.
Validation and detection
- Inventory the listed NETGEAR router models in offices, branches, labs, and remote sites.
- Compare installed firmware versions against the fixed thresholds in the advisory.
- Confirm management interfaces are not exposed beyond trusted local administrative networks.
- Record devices that are end-of-life, unmanaged, or unable to receive firmware updates.
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-2017-18786 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
- 8.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/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:L/A:H/C:H/I:H/PR:N/S:U/UI:N2.55.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.4HighVector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049529/Security-Advisory-for-Command-Injection-on-Some-Routers-PSV-2017-2949CVE 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.