Security readout for executives and security teams
Plain-English summary
Some NETGEAR routers have a command injection flaw in older firmware. If an exposed affected device is reachable under the conditions described by the advisory, an attacker could potentially run unintended commands on the device, creating risk to network integrity and availability.
Executive priority
Prioritize remediation where listed NETGEAR routers support business connectivity, remote sites, or sensitive networks. The issue has high impact, but the provided evidence does not show known active exploitation.
Technical view
CVE-2017-18787 describes command injection affecting specific NETGEAR router models before listed firmware versions. CVSS 3.0 score is 8.4 with low complexity, no privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact. The recorded attack vector is local.
Likely exposure
Exposure is limited to listed NETGEAR models running older firmware: D6200, JNR1010v2, JR6150, JWNR2010v5, PR2000, R6050, WNR1000v4, WNR2020, and WNR2050. Compare firmware against the fixed version thresholds in the advisory.
Exploitation context
The provided sources do not report active exploitation, and CISA KEV is false. The CVSS vector indicates local attack vector, low complexity, no required privileges, and no user interaction. Treat vulnerable devices as high-risk network edge or internal routing assets.
Researcher notes
The public bundle provides affected models, fixed-version thresholds, CVSS, and one NETGEAR advisory reference. It does not include CWE detail, root-cause specifics, exploit prerequisites beyond CVSS, or proof of exploitation. Avoid broader product assumptions.
Mitigation direction
- Upgrade affected NETGEAR devices to the fixed firmware versions or later.
- Check the NETGEAR advisory for model-specific firmware guidance.
- Remove or replace affected devices that cannot receive fixed firmware.
- Limit access to device management interfaces to trusted administrators.
- Prioritize routers on sensitive or business-critical network segments.
Validation and detection
- Inventory NETGEAR router models and firmware versions across the environment.
- Compare each device version against the affected version thresholds.
- Confirm upgraded firmware versions after remediation.
- Review whether management interfaces are reachable from untrusted networks.
- Document unsupported or unpatchable devices for replacement decisions.
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-2017-18787 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/000049528/Security-Advisory-for-Command-Injection-on-Some-Routers-PSV-2017-2948CVE 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.