Security readout for executives and security teams
Plain-English summary
CVE-2019-20644 is a stored cross-site scripting issue in NETGEAR RAX40 router firmware before 1.0.3.62. It could let a highly privileged local attacker store script content that later runs when an administrator views affected router pages. Business urgency is moderate because exploitation requires local access, high privileges, and user interaction.
Executive priority
Treat this as a routine but necessary router firmware hygiene issue. Prioritize remediation where RAX40 devices support business networks, remote offices, or administrator interfaces reachable by many local users.
Technical view
The CVSS v3.0 vector is AV:L/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N, score 4.2. The issue is stored XSS affecting NETGEAR RAX40 devices before firmware 1.0.3.62. Sources do not provide CWE mapping, exploit details, or broader affected product data beyond RAX40.
Likely exposure
Exposure is likely limited to environments running NETGEAR RAX40 firmware older than 1.0.3.62, especially where router administration is reachable by untrusted local users or shared operational accounts.
Exploitation context
The CVE is not listed as KEV, and the supplied sources do not state active exploitation. The attack is local, requires high privileges, and needs user interaction, which reduces broad internet-scale urgency.
Researcher notes
The public bundle is sparse: it names stored XSS, RAX40, and the fixed threshold version, but does not include vulnerable parameters, proof of concept, or detailed affected CPEs. Avoid assuming other NETGEAR models are affected without vendor confirmation.
Mitigation direction
- Upgrade NETGEAR RAX40 firmware to 1.0.3.62 or later.
- Restrict router management access to trusted administrators only.
- Disable remote or unnecessary administrative exposure where applicable.
- Review NETGEAR guidance for any additional vendor-specific instructions.
Validation and detection
- Inventory NETGEAR RAX40 devices and record firmware versions.
- Confirm affected devices are no longer below firmware 1.0.3.62.
- Verify management interfaces are not exposed to untrusted networks.
- Review administrator access for unnecessary or shared privileged accounts.
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
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CVE-2019-20644 mapping review
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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/000061498/Security-Advisory-for-Stored-Cross-Site-Scripting-on-RAX40-PSV-2019-0246CVE 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.