Security readout for executives and security teams
Plain-English summary
CVE-2019-20645 is a stored cross-site scripting issue in NETGEAR RAX40 routers running firmware before 1.0.3.62. Business risk is mainly compromise or misuse of the router management experience, not broad remote takeover based on the cited CVSS vector. The source bundle does not show active exploitation.
Executive priority
Handle through normal router firmware maintenance with moderate priority. It is not currently supported as actively exploited by the provided sources, but affected routers should still be upgraded because network edge devices are high-value operational assets.
Technical view
The CVE describes stored XSS affecting NETGEAR RAX40 devices before firmware 1.0.3.62. CVSS 3.0 is 4.2 with local attack vector, high privileges, user interaction required, changed scope, and low confidentiality and integrity impact. No CWE, CPE, endpoint detail, or proof-of-concept data is provided.
Likely exposure
Exposure appears limited to NETGEAR RAX40 devices on firmware earlier than 1.0.3.62. The CVE record does not identify other affected products or CPEs. Risk is higher where router administration is shared, poorly controlled, or accessible from untrusted local networks.
Exploitation context
The source bundle marks KEV as false, and no cited source states active exploitation. The CVSS vector suggests exploitation requires local access, high privileges, and user interaction, which materially reduces likelihood compared with unauthenticated remote router flaws.
Researcher notes
The record is sparse: no CWE, affected CPEs, endpoint, payload, or exploit evidence are included. Stored XSS means malicious content may persist in the device UI, but validation should focus on product and firmware inventory rather than assumptions about other NETGEAR models.
Mitigation direction
- Inventory NETGEAR RAX40 routers and record current firmware versions.
- Update affected RAX40 devices to firmware 1.0.3.62 or later, per vendor guidance.
- Restrict router administration to trusted administrators and trusted networks.
- Disable unnecessary remote management exposure if present.
- Review NETGEAR advisory details before applying operational changes.
Validation and detection
- Confirm each RAX40 reports firmware version 1.0.3.62 or later.
- Check whether any RAX40 administrative interface is reachable from untrusted networks.
- Verify router admin accounts are limited to authorized personnel.
- Review recent router configuration changes for unexpected modifications.
- Track remediation status separately from unsupported or unidentified NETGEAR models.
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-2019-20645 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
- 4.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:N/C:L/I:L/PR:H/S:C/UI:R
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:L/I:L/PR:H/S:C/UI:R1.12.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
4.2MediumVector: CVSS:3.0/AC:L/AV:L/A:N/C:L/I:L/PR:H/S:C/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000061497/Security-Advisory-for-Stored-Cross-Site-Scripting-on-RAX40-PSV-2019-0243CVE 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.
