Security readout for executives and security teams
Plain-English summary
This is a high-severity security misconfiguration in specific NETGEAR routers and extenders. An attacker on an adjacent network could potentially affect confidentiality, integrity, and availability without authentication or user interaction. Organizations should identify listed models and update firmware to the vendor-fixed versions or later.
Executive priority
Prioritize remediation where affected NETGEAR devices support business networks, guest Wi-Fi, remote sites, or unmanaged edge locations. The issue is high severity and unauthenticated within adjacent-network scope, but the provided sources do not show active exploitation or CISA KEV listing.
Technical view
CVE-2017-18763 affects multiple NETGEAR models before specified firmware versions. The CVSS 3.0 vector is AV:A/AC:L/PR:N/UI:N with high confidentiality, integrity, and availability impact, scoring 8.8. The source bundle does not provide CWE detail or configuration-level root cause beyond security misconfiguration.
Likely exposure
Exposure is limited to the listed NETGEAR models and firmware earlier than the fixed versions, including JNR1010v2, JR6150, JWNR2010v5, PR2000, R6050, R6120, R6220, R6700v2, R6800, R6900v2, WNDR3700v5, WNR1000v4, WNR2020, and WNR2050.
Exploitation context
The CVSS vector indicates adjacent-network attack exposure, low complexity, no privileges, and no user interaction. The source bundle marks KEV as false and provides no cited evidence of active exploitation. Treat internet or guest-network placement as higher operational concern, but do not assume exploitation without additional evidence.
Researcher notes
The bundle lacks detailed weakness mapping, exploit prerequisites beyond CVSS, and exact misconfiguration mechanics. Analysis should stay anchored to affected firmware thresholds and adjacent-network scope. Validate exposure by asset inventory and firmware comparison rather than assuming all NETGEAR devices are affected.
Mitigation direction
- Inventory NETGEAR devices against the affected model list.
- Upgrade each affected device to the fixed firmware version or later.
- Check the NETGEAR advisory for model-specific firmware guidance.
- Restrict untrusted access to local and guest networks where these devices operate.
- Replace devices that cannot receive supported firmware updates.
Validation and detection
- Confirm each device model and firmware version from management records or device UI.
- Compare versions against the fixed-version thresholds in the CVE description.
- Verify upgraded devices report the expected firmware after reboot.
- Review network segmentation for adjacent-network exposure paths.
- Document exceptions for unsupported or unreachable devices.
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-2017-18763 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
- 8.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/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:H/C:H/I:H/PR:N/S:U/UI:N2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000051482/Security-Advisory-for-Security-Misconfiguration-on-Some-Routers-and-Extenders-PSV-2017-2212CVE 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.