Security readout for executives and security teams
Plain-English summary
CVE-2017-18703 is a high-severity cross-site request forgery issue in many NETGEAR routers, gateways, and extenders. A victim must interact with attacker-controlled content, but the attacker needs no privileges. Successful abuse could affect device confidentiality, integrity, and availability according to the CVSS data.
Executive priority
Treat as a high-priority remediation item for any listed NETGEAR device still in use. The business risk is unauthorized device changes or disruption, especially in small sites relying on consumer or prosumer networking equipment.
Technical view
The CVE lists CSRF across numerous NETGEAR models with fixed firmware thresholds. CVSS 3.0 is 8.8 with network attack vector, low complexity, no privileges required, user interaction required, unchanged scope, and high confidentiality, integrity, and availability impact. The source bundle does not provide CWE details or endpoint-level technical specifics.
Likely exposure
Exposure is most likely where listed NETGEAR models remain on firmware earlier than the fixed versions named in the CVE description and vendor advisory. Home offices, small offices, and branch environments may be affected if these devices are still deployed.
Exploitation context
The provided sources do not show CISA KEV listing or confirmed active exploitation. The vulnerability requires user interaction, consistent with CSRF risk. Do not assume internet-scale exploitation from this bundle alone.
Researcher notes
Evidence is limited to CVE metadata and the NETGEAR advisory reference. The bundle does not include proof-of-concept details, affected endpoints, CWE mapping, or exploitation reports. Validation should focus on model and firmware matching rather than exploit reproduction.
Mitigation direction
- Inventory NETGEAR models listed in the CVE description.
- Upgrade affected devices to the vendor-fixed firmware versions or later.
- Review NETGEAR advisory PSV-2017-0736 for model-specific guidance.
- Restrict access to device management interfaces to trusted networks.
- Retire unsupported devices if fixed firmware is unavailable.
Validation and detection
- Compare each device model and firmware version against the CVE fixed-version list.
- Confirm firmware is at or above the vendor-fixed version after upgrade.
- Check whether management interfaces are reachable from untrusted networks.
- Review device configuration for unexpected administrative changes.
- Document exceptions where devices cannot be upgraded.
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-2017-18703 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:N/A:H/C:H/I:H/PR:N/S:U/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:N/A:H/C:H/I:H/PR:N/S:U/UI:R2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AC:L/AV:N/A:H/C:H/I:H/PR:N/S:U/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000053199/Security-Advisory-for-Cross-Site-Request-Forgery-on-Some-Routers-Gateways-and-Extenders-PSV-2017-0736CVE 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.