Security readout for executives and security teams
Plain-English summary
NETGEAR ReadyNAS devices running ReadyNAS OS before 6.9.3 are affected by cross-site request forgery. A targeted attacker could potentially abuse a user’s browser interaction to make unauthorized administrative changes. The CVSS score is high, but the provided sources do not show confirmed active exploitation.
Executive priority
Treat this as a high-priority remediation for any legacy ReadyNAS estate. It is not a confirmed active-exploitation emergency based on the provided evidence, but outdated NAS devices can carry material business risk.
Technical view
CVE-2018-21102 is a CSRF issue in NETGEAR ReadyNAS before 6.9.3. The CVSS v3.0 score is 8.8 with network attack vector, low complexity, no privileges required, user interaction required, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is likely limited to environments still running NETGEAR ReadyNAS OS versions before 6.9.3. The source bundle does not identify specific ReadyNAS models, affected endpoints, or deployment patterns.
Exploitation context
The CVE is not listed as KEV in the provided bundle. No cited source confirms active exploitation. CSRF generally depends on user interaction and an existing browser context that can reach the affected ReadyNAS interface.
Researcher notes
The public CVE data is sparse. The main confirmed facts are product family, affected version threshold, weakness class, CVSS vector, and vendor advisory reference. Model coverage and technical root cause are not included in the bundle.
Mitigation direction
- Upgrade affected ReadyNAS OS installations to version 6.9.3 or later.
- Review the NETGEAR advisory for product-specific guidance.
- Restrict ReadyNAS administrative interface access to trusted networks.
- Educate administrators to avoid untrusted links while authenticated to management interfaces.
Validation and detection
- Inventory NETGEAR ReadyNAS devices and record ReadyNAS OS versions.
- Flag any ReadyNAS OS version earlier than 6.9.3.
- Confirm administrative interfaces are not broadly reachable.
- Review recent administrative changes for unexpected activity.
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-2018-21102 mapping review
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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/000060454/Security-Advisory-for-Cross-Site-Request-Forgery-on-ReadyNAS-OS-6-PSV-2018-0373CVE 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.