Security readout for executives and security teams
Plain-English summary
CVE-2019-20730 is a high-severity SQL injection issue affecting many NETGEAR routers, gateways, and extenders running firmware older than specified fixed versions. A network attacker needs no credentials or user interaction according to the CVSS vector, so exposed vulnerable devices should be treated as urgent.
Executive priority
Prioritize this for environments using affected NETGEAR network devices, especially edge or unmanaged devices. The business concern is unauthorized network-based compromise with potential exposure of sensitive data, not just routine firmware hygiene.
Technical view
The CVE describes SQL injection across numerous NETGEAR models, with CVSS 3.0 score 8.2 and vector AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L. The sources identify affected firmware as versions before the listed per-model releases; they do not provide endpoint details, exploit mechanics, or a CWE assignment.
Likely exposure
Exposure is most likely where listed NETGEAR D-series, R-series, WNDR, EX8000, DC112A, JR6150, or related models remain on firmware below the fixed versions. Risk increases for devices reachable from untrusted networks.
Exploitation context
The provided sources do not state active exploitation, and the bundle marks CISA KEV as false. The CVSS vector indicates remote, unauthenticated, low-complexity exploitation without user interaction, but no public exploit status is cited here.
Researcher notes
Evidence is limited to the CVE description and NETGEAR advisory reference. The sources name SQL injection and fixed firmware thresholds but do not disclose vulnerable parameters, proof-of-concept status, or active exploitation. Avoid assuming exploit availability without additional cited evidence.
Mitigation direction
- Identify NETGEAR model and firmware version for every deployed device.
- Upgrade each device to the fixed firmware version listed for its model.
- Retire or replace devices that cannot receive fixed firmware.
- Restrict network reachability to vulnerable devices until firmware status is confirmed.
- Check NETGEAR advisory updates for model-specific remediation guidance.
Validation and detection
- Compare each device model and firmware against the CVE fixed-version list.
- Confirm upgraded devices report firmware at or above the relevant fixed release.
- Review asset inventory for unmanaged NETGEAR routers, gateways, and extenders.
- Verify vulnerable devices are not reachable from untrusted networks.
- Document exceptions where firmware cannot be updated and track replacement.
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.
Database behavior lookup
The CVE wording references database injection or access, so collection and exfiltration review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2019-20730 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
- 8.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:N/A:N/C:H/I:L/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:N/A:N/C:H/I:L/PR:N/S:U/UI:N3.94.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.2HighVector: CVSS:3.0/AC:L/AV:N/A:N/C:H/I:L/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000061197/Security-Advisory-for-SQL-Injection-on-Some-Routers-Gateways-and-Extenders-PSV-2017-3056CVE 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.