Security readout for executives and security teams
Plain-English summary
NETGEAR ReadyNAS devices running firmware before 6.9.3 are reported vulnerable to cross-site request forgery. A victim must interact with attacker-controlled content, but successful abuse could affect data confidentiality, integrity, and availability on the NAS.
Executive priority
Treat as a high-priority appliance remediation item if ReadyNAS is still in use, especially where it stores sensitive business data or supports operational workflows.
Technical view
CVE-2018-21160 is a CSRF issue in NETGEAR ReadyNAS OS 6 before 6.9.3. The CVSS 3.0 vector is 8.0 High, with adjacent-network attack vector, low complexity, no privileges required, user interaction required, and high CIA impact.
Likely exposure
Exposure is most likely where ReadyNAS OS 6 appliances below 6.9.3 are reachable from user workstations or shared administrative networks.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. Risk remains meaningful because CSRF can abuse a legitimate user interaction when the vulnerable ReadyNAS interface is reachable.
Researcher notes
The public bundle is sparse: no CWE, affected CPEs, exploit details, or model list are provided. Analysis relies on the CVE description, NETGEAR advisory reference, and CVSS vector.
Mitigation direction
- Upgrade affected ReadyNAS OS 6 devices to 6.9.3 or a supported later release.
- Review NETGEAR’s advisory for model-specific firmware and guidance.
- Restrict ReadyNAS management access to trusted administrative networks only.
- Use hardened browser practices for administrators accessing NAS management interfaces.
Validation and detection
- Inventory ReadyNAS appliances and record their ReadyNAS OS versions.
- Flag any ReadyNAS OS 6 device running below 6.9.3.
- Confirm management interfaces are not reachable from untrusted or broad user networks.
- Review administrative changes for unexpected NAS configuration or account modifications.
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-2018-21160 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 (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: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:A/A:H/C:H/I:H/PR:N/S:U/UI:R2.15.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8HighVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000059470/Security-Advisory-for-Cross-Site-Request-Forgery-on-ReadyNAS-OS-6-PSV-2017-1998CVE 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.