Security readout for executives and security teams
Plain-English summary
CVE-2017-18741 is a high-severity NETGEAR router security-misconfiguration issue. It affects specific router models running firmware older than named fixed versions. The main business concern is possible confidentiality impact from an adjacent-network attacker, such as someone on or near the local network.
Executive priority
Prioritize remediation where listed routers protect offices, guest Wi-Fi, or sensitive networks. The issue has high confidentiality impact, low attack complexity, and no privilege requirement, but available sources only support adjacent-network exposure and do not confirm active exploitation.
Technical view
The CVSS 3.0 vector is 7.4 high: AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N. Sources describe incorrect security settings on listed NETGEAR router models before specific firmware versions. The source bundle does not provide CWE details, exploit mechanics, or proof-of-concept information.
Likely exposure
Exposure is most likely in environments still using the listed NETGEAR R-series routers below the fixed firmware versions. Because the attack vector is adjacent network, risk is concentrated on local LAN or wireless-adjacent access rather than arbitrary internet reachability.
Exploitation context
The source bundle does not state active exploitation, and KEV status is false. No cited source in the bundle confirms public exploitation. Treat this as a high-impact configuration flaw requiring inventory and firmware validation, not as confirmed in-the-wild exploitation.
Researcher notes
The CVE record lists affected model/version thresholds but no CWE, CPE detail, exploit description, or vendor/product normalization. CVSS indicates confidentiality-only impact with changed scope. Further analysis should stay anchored to the NETGEAR advisory and observed firmware versions.
Mitigation direction
- Identify any listed NETGEAR router models in use.
- Upgrade affected devices to at least the listed non-affected firmware versions.
- Review the NETGEAR advisory for model-specific firmware guidance.
- Retire or replace devices that cannot be updated safely.
- Limit untrusted access to local and wireless networks around affected routers.
Validation and detection
- Inventory router model names and firmware versions.
- Compare versions against the affected thresholds in the CVE description.
- Confirm whether listed devices remain deployed in production or branch networks.
- Check the NETGEAR advisory for exact model coverage.
- Document remediation evidence, including firmware version after update.
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-2017-18741 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
- High
- CVSS
- 7.4 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:N/C:H/I:N/PR:N/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:H/I:N/PR:N/S:C/UI:N2.84Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.4HighVector: CVSS:3.0/AC:L/AV:A/A:N/C:H/I:N/PR:N/S:C/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000051514/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-PSV-2017-0335CVE 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.