Security readout for executives and security teams
Plain-English summary
CVE-2019-20672 is a stored cross-site scripting issue in certain NETGEAR Orbi WiFi systems. Affected firmware is earlier than 2.3.5.30 for RBR50, RBS50, and RBK50. The business risk is moderate: exploitation requires high privileges and a local attack vector, but successful abuse can affect sensitive browser-session data and actions.
Executive priority
Treat this as a moderate-priority remediation item. It is not supported by evidence of active exploitation in the supplied sources, but affected network infrastructure should be updated because successful exploitation could compromise confidentiality and integrity in the device management context.
Technical view
The CVE describes stored XSS affecting NETGEAR RBR50, RBS50, and RBK50 before firmware 2.3.5.30. The provided CVSS 3.0 score is 6.0 with AC:L/AV:L/PR:H/UI:N/S:U/C:H/I:H/A:N, indicating low complexity, high privileges required, no availability impact, and high confidentiality and integrity impact.
Likely exposure
Exposure is limited to organizations or users running NETGEAR RBR50, RBS50, or RBK50 devices on firmware earlier than 2.3.5.30. The source bundle does not identify other affected products or platforms.
Exploitation context
The bundle does not show CISA KEV listing or any cited evidence of active exploitation. The CVSS vector indicates exploitation requires local attack vector conditions and high privileges, which reduces broad internet-scale risk but does not eliminate risk on managed or shared networks.
Researcher notes
The supplied affected CPE data is not populated, so product identification depends on the textual CVE description and NETGEAR advisory reference. Do not expand scope beyond RBR50, RBS50, and RBK50 before 2.3.5.30 without additional vendor evidence.
Mitigation direction
- Upgrade affected NETGEAR RBR50, RBS50, and RBK50 firmware to 2.3.5.30 or later.
- Review the NETGEAR advisory for device-specific firmware guidance.
- Prioritize devices administered by multiple users or used in sensitive environments.
- Track remediation evidence in asset and vulnerability management records.
Validation and detection
- Inventory NETGEAR RBR50, RBS50, and RBK50 devices.
- Confirm each device firmware version is 2.3.5.30 or later.
- Check whether affected devices are still in operational use.
- Review administrative access controls for affected WiFi systems.
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.
CVE-2019-20672 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:N/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:L/A:N/C:H/I:H/PR:H/S:U/UI:N0.85.2Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6MediumVector: CVSS:3.0/AC:L/AV:L/A:N/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000061467/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-WiFi-Systems-PSV-2018-0547CVE 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.