Security readout for executives and security teams
Plain-English summary
CVE-2017-18835 is a reflected cross-site scripting issue in listed NETGEAR fully managed switches running firmware before 12.0.2.15. It could let an attacker influence what an authenticated or targeted user sees or runs in a browser session. Business urgency is moderate, focused on switches still running old firmware.
Executive priority
Treat as a moderate hygiene and infrastructure-maintenance item. Prioritize remediation where affected switches support sensitive networks or where management interfaces are broadly reachable by administrators or untrusted users.
Technical view
The source describes reflected XSS affecting NETGEAR M4200 and multiple M4300 switch models before firmware 12.0.2.15. CVSS 3.0 is 6.1 with no privileges required, user interaction required, changed scope, and low confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to organizations with the named NETGEAR M4200 or M4300 models on firmware earlier than 12.0.2.15. The source bundle does not identify affected CPEs or a specific vulnerable endpoint.
Exploitation context
The CVE is not listed as KEV, and the provided sources do not state active exploitation. The CVSS vector indicates user interaction is required, so realistic abuse depends on reaching a user who can interact with the affected management context.
Researcher notes
Evidence is sparse beyond model and fixed-version information. Do not infer exploitability details, affected URLs, or proof-of-concept behavior from the bundle. The key validation work is firmware inventory, model matching, and review of vendor advisory guidance.
Mitigation direction
- Identify listed NETGEAR M4200 and M4300 models in inventory.
- Upgrade affected switches to firmware 12.0.2.15 or later.
- Review the NETGEAR advisory for model-specific guidance.
- Restrict switch management access to trusted administrative networks.
Validation and detection
- Confirm each switch model against the CVE affected model list.
- Record current firmware versions for all listed devices.
- Verify upgraded devices report firmware 12.0.2.15 or later.
- Check security records for evidence of browser-based management anomalies.
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-2017-18835 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
- 6.1 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:L/C:L/I:L/PR:N/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:L/C:L/I:L/PR:N/S:C/UI:R1.83.7Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.1MediumVector: CVSS:3.0/AC:L/AV:L/A:L/C:L/I:L/PR:N/S:C/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049027/Security-Advisory-for-Reflected-Cross-Site-Scripting-on-Some-Fully-Managed-Switches-PSV-2017-1957CVE 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.