Security readout for executives and security teams
Plain-English summary
Some NETGEAR Orbi WiFi systems had a stored cross-site scripting flaw in older firmware. A highly privileged local attacker could potentially store malicious content in the device interface, creating confidentiality and integrity risk for management sessions.
Executive priority
Treat as a moderate-priority infrastructure hygiene issue. Patch affected Orbi systems during the next maintenance window, sooner where device administration is shared, weakly controlled, or exposed to broad local networks.
Technical view
CVE-2019-20665 is stored XSS affecting specified NETGEAR RBR/RBS/RBK 20, 40, and 50 series devices before listed firmware versions. The CVSS 3.0 vector is local, low complexity, high privileges required, no user interaction, unchanged scope, with high confidentiality and integrity impact.
Likely exposure
Exposure is most likely where affected NETGEAR Orbi WiFi systems remain on firmware earlier than 2.3.5.26 for 20-series devices or 2.3.5.30 for 40/50-series devices.
Exploitation context
The source bundle does not show CISA KEV listing or active exploitation. CVSS indicates exploitation requires local access and high privileges, limiting broad remote risk but still making unpatched administrative environments relevant.
Researcher notes
The record provides affected models, fixed-version thresholds, and CVSS but no CWE entry or exploit details. Do not infer remote unauthenticated exposure; the provided vector is AV:L/PR:H/UI:N with high confidentiality and integrity impact.
Mitigation direction
- Upgrade RBR20, RBS20, and RBK20 to firmware 2.3.5.26 or later.
- Upgrade RBR40, RBS40, RBK40, RBR50, RBS50, and RBK50 to 2.3.5.30 or later.
- Check NETGEAR's advisory for model-specific upgrade instructions and any later vendor guidance.
- Restrict access to device administration interfaces to trusted administrative networks and accounts.
Validation and detection
- Inventory NETGEAR Orbi RBR, RBS, and RBK 20/40/50-series devices.
- Compare installed firmware against the fixed versions named in the CVE description.
- Confirm administrative interfaces are not reachable from untrusted local networks.
- Track remediation evidence by device model, firmware version, and update date.
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-2019-20665 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 (3.0)
- 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/000061474/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-WiFi-Systems-PSV-2018-0556CVE 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.