Security readout for executives and security teams
Plain-English summary
CVE-2018-21120 is a cross-site request forgery issue in several NETGEAR wireless access points. A successful attack would require user interaction and a nearby network position, based on the CVSS vector. The main business concern is disruption to affected access point availability, not data theft.
Executive priority
Treat this as a moderate remediation item. It is not flagged as actively exploited, but affected access points can support core business connectivity. Prioritize updates during normal network maintenance, with faster action for devices in shared, campus, or guest-access environments.
Technical view
The CVE describes CSRF affecting WAC120, WAC505, WAC510, WNAP320, WNAP210v2, WNDAP350, WNDAP360, WNDAP660, WNDAP620, WND930, and WN604 before specified firmware versions. CVSS 3.0 is 5.2 with adjacent attack vector, low complexity, low privileges, required user interaction, no confidentiality or integrity impact, and high availability impact.
Likely exposure
Exposure is limited to organizations still running the listed NETGEAR access point models below the fixed firmware versions. The CVSS vector indicates an adjacent-network attack condition and required user interaction, reducing internet-scale exposure but still relevant in office, campus, or guest-network environments.
Exploitation context
The provided sources do not report active exploitation, and this CVE is not marked KEV. The scoring indicates exploitation depends on user interaction, low privileges, and adjacent network access. No public exploit details are included in the source bundle.
Researcher notes
The source bundle provides affected model and version thresholds but no CWE mapping, exploit narrative, or detailed vendor mitigation text beyond the advisory reference. Validation should focus on firmware evidence, management-plane reachability, and whether any listed device remains in production below the fixed version.
Mitigation direction
- Upgrade affected NETGEAR devices to the fixed firmware versions or later.
- Use the NETGEAR advisory as the authoritative firmware guidance.
- Prioritize devices managing business-critical wireless networks.
- Restrict access to device administration interfaces where operationally possible.
- Retire listed models if supported firmware is unavailable.
Validation and detection
- Inventory NETGEAR wireless access point models in use.
- Compare installed firmware against the affected version thresholds.
- Confirm WAC505 and WAC510 are at least 5.0.5.4.
- Confirm WNAP and WNDAP models meet their listed fixed versions.
- Document any device that 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-2018-21120 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
- Medium
- CVSS
- 5.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:N/I:N/PR:L/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:N/I:N/PR:L/S:U/UI:R1.53.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
5.2MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:N/I:N/PR:L/S:U/UI:R
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000060238/Security-Advisory-for-Cross-Site-Request-Forgery-on-Some-Wireless-Access-Points-PSV-2018-0095CVE 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.