Security readout for executives and security teams
Plain-English summary
This vulnerability lets a logged-in user run unintended system commands on certain NETGEAR routers or gateways. It is not described as remotely exploitable without authentication, but compromise of a low-privilege account on the local network could affect device availability and settings integrity.
Executive priority
Treat this as a moderate-priority network edge hygiene issue. Prioritize firmware updates where affected devices support business connectivity, remote work, guest networks, or other shared environments.
Technical view
CVE-2019-20704 is a post-authentication command injection issue affecting NETGEAR D3600 before 1.0.0.76, D6000 before 1.0.0.76, and XR500 before 2.3.2.32. CVSS 3.0 is 6.3 with adjacent-network access, low privileges, no user interaction, high availability impact, and low integrity impact.
Likely exposure
Exposure is limited to organizations or users running the listed NETGEAR models on older firmware, especially where device administration is reachable from untrusted local networks or weak accounts exist.
Exploitation context
The source bundle does not cite active exploitation, and the CVE is not marked as CISA KEV. The vulnerability requires an authenticated user and adjacent-network access according to the provided CVSS vector.
Researcher notes
Affected CPEs and CWE are not populated in the provided bundle. Analysis is based on the CVE description, CVSS vector, KEV flag, and NETGEAR advisory reference only.
Mitigation direction
- Upgrade D3600 and D6000 firmware to 1.0.0.76 or later.
- Upgrade XR500 firmware to 2.3.2.32 or later.
- Review NETGEAR advisory PSV-2018-0392 for device-specific guidance.
- Restrict router administration to trusted users and trusted local networks.
Validation and detection
- Inventory NETGEAR D3600, D6000, and XR500 devices.
- Compare installed firmware with the affected version thresholds.
- Confirm administrative access requires authentication and is not broadly reachable.
- Document patched devices and any devices awaiting vendor guidance.
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-2019-20704 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
- Medium
- CVSS
- 6.3 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:N/I:L/PR:L/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:N/I:L/PR:L/S:U/UI:N2.14.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.3MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:N/I:L/PR:L/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000061225/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-and-Gateways-PSV-2018-0392CVE 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.