Security readout for executives and security teams
Plain-English summary
This CVE is a stored cross-site scripting issue in specific NETGEAR WiFi systems. If an affected device runs older firmware, malicious content could persist in the device interface and later run in an administrator’s browser. The public data does not show active exploitation.
Executive priority
Treat this as a moderate-risk network device hygiene issue. It is not marked as actively exploited, but affected routers and satellites should be upgraded because compromise of administrative web interfaces can affect sensitive configuration integrity.
Technical view
CVE-2019-20674 affects listed NETGEAR RBR, RBS, and RBK devices before specified firmware versions. CVSS 3.0 is 6.0 with local attack vector and high privileges required, but high confidentiality and integrity impact. The source bundle identifies stored XSS and fixed firmware thresholds.
Likely exposure
Exposure is limited to the specific NETGEAR RBR20, RBS20, RBK20, RBR40, RBS40, RBK40, RBR50, RBS50, and RBK50 devices running pre-fixed firmware.
Exploitation context
The provided CVSS vector indicates local access and high privileges are required, with no user interaction. KEV is false, and the provided sources do not cite active exploitation or public weaponization.
Researcher notes
The source bundle lacks CWE detail and advisory content beyond the stored XSS description and version thresholds. Do not assume broader NETGEAR impact. Validation should focus on exact model and firmware matching rather than generic product-family assumptions.
Mitigation direction
- Upgrade RBR20, RBS20, and RBK20 to firmware 2.3.5.26 or later.
- Upgrade RBR40, RBS40, RBK40, RBR50, RBS50, and RBK50 to firmware 2.3.5.30 or later.
- Check the NETGEAR advisory for model-specific firmware guidance.
- Prioritize any affected device still running pre-fixed firmware.
Validation and detection
- Inventory NETGEAR devices and match model names against the affected list.
- Record each device firmware version and compare it with the fixed threshold.
- Confirm upgraded devices report the expected firmware version after maintenance.
- Review vendor guidance for any additional validation instructions.
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-2019-20674 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/000061465/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-WiFi-Systems-PSV-2018-0545CVE 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.