Security readout for executives and security teams
Plain-English summary
CVE-2019-20722 is a command injection flaw in multiple NETGEAR routers, gateways, and WiFi systems. It requires an authenticated user, but successful abuse could let commands run on affected network equipment. Treat it as a network infrastructure hygiene issue, especially where older consumer or small-office NETGEAR devices remain deployed.
Executive priority
Prioritize remediation where affected NETGEAR devices protect office, remote-work, or production-adjacent networks. This is not currently source-confirmed as actively exploited, but vulnerable network edge equipment can become a business-impacting foothold if credentials or admin access are compromised.
Technical view
The CVE describes post-authentication command injection affecting listed NETGEAR D7800, DM200, R-series, Orbi RBK/RBR/RBS, WNDR, WNR, and XR500 models before specified firmware versions. CVSS 3.0 is 6.8: adjacent network, low complexity, high privileges, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in environments still running the affected NETGEAR models below the fixed firmware versions. The source data does not identify cloud services, enterprise software, or non-NETGEAR products as affected. Internet-facing management would increase operational concern, but that exposure is not stated in the source bundle.
Exploitation context
The bundle does not show CISA KEV listing or cited evidence of active exploitation. The vulnerability requires an authenticated user and adjacent-network reachability per the CVSS vector, reducing broad unauthenticated risk. Impact remains meaningful because command injection on network equipment can compromise device control and availability.
Researcher notes
The source bundle gives affected models, fixed-version thresholds, CVSS vector, and NETGEAR advisory reference, but no CWE, exploit details, or observed exploitation evidence. Analysis should stay model-and-version driven. Avoid expanding scope beyond the named NETGEAR devices without additional vendor confirmation.
Mitigation direction
- Inventory NETGEAR models listed in the advisory and CVE record.
- Upgrade affected devices to at least the firmware versions named as fixed.
- Review NETGEAR advisory PSV-2018-0148 for model-specific firmware guidance.
- Restrict administrative access to trusted users and management networks.
- Replace devices that cannot run a fixed firmware version.
Validation and detection
- Confirm device model numbers against the CVE affected model list.
- Record current firmware versions from each device administration interface.
- Verify firmware is not below the fixed version listed for that model.
- Check whether administrative access is limited to trusted network paths.
- Document any unsupported or unpatchable devices for replacement tracking.
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-2019-20722 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
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/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:H/S:U/UI:N0.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000061206/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Routers-Gateways-and-WiFi-Systems-PSV-2018-0148CVE 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.