Security readout for executives and security teams
Plain-English summary
Some NETGEAR extenders, gateways, and routers can store malicious script in their management interface. If an attacker with high privileges on the adjacent network can plant that content, it could affect future interface views and expose or alter limited data.
Executive priority
Treat this as a moderate hygiene issue. It is unlikely to justify emergency response alone, but outdated network devices should be upgraded because management-plane flaws can support broader compromise paths.
Technical view
CVE-2019-20750 is a stored XSS issue affecting specified NETGEAR models before named firmware versions. CVSS 3.0 is 4.8 with adjacent attack vector, low complexity, high privileges required, no user interaction, changed scope, and low confidentiality and integrity impact.
Likely exposure
Exposure is mainly organizations using the listed NETGEAR models with firmware below the cited versions, especially branch, lab, home-office, or unmanaged network edge devices.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation. The CVSS vector indicates adjacent-network access and high privileges are required, limiting broad remote exploitation risk.
Researcher notes
The source bundle identifies affected models and firmware thresholds, but does not provide CWE details, exploit status, or exploit mechanics. Analysis should stay anchored to stored XSS, CVSS constraints, and NETGEAR advisory guidance.
Mitigation direction
- Update D7800, EX6150v2, R7500v2, and R7800 to the listed or later firmware.
- Update R8900, R9000, WN2000RPTv3, WN3000RPv3, and WN3100RPv2 accordingly.
- Follow the NETGEAR advisory for exact firmware availability and update instructions.
- Restrict access to device management interfaces to trusted administrators and networks.
Validation and detection
- Inventory NETGEAR extenders, gateways, and routers by model and firmware version.
- Flag listed models running firmware below the version thresholds in the CVE description.
- Confirm management interfaces are not exposed beyond trusted administrative networks.
- Recheck firmware after remediation and record updated versions.
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-2019-20750 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
- 4.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:N/C:L/I:L/PR:H/S:C/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:N/C:L/I:L/PR:H/S:C/UI:N1.72.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.8MediumVector: CVSS:3.0/AC:L/AV:A/A:N/C:L/I:L/PR:H/S:C/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000060966/Security-Advisory-for-Stored-Cross-Site-Scripting-on-Some-Extenders-Gateways-and-Routers-PSV-2018-0173CVE 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.