Security readout for executives and security teams
Plain-English summary
This flaw lets a logged-in, high-privilege user inject operating-system commands on certain NETGEAR wireless access points. It affects WAC505 and WAC510 devices running firmware before 5.0.5.4. The business risk is highest where access point administration is shared, weakly controlled, or reachable from untrusted network segments.
Executive priority
Treat as a targeted remediation item for wireless infrastructure, not an internet-wide emergency. Prioritize sites with older NETGEAR WAC505 or WAC510 devices and weak administrative access controls.
Technical view
CVE-2018-21119 is a post-authentication command injection issue in NETGEAR WAC505 and WAC510 firmware before 5.0.5.4. CVSS 3.0 is 6.8 with adjacent-network attack vector, low complexity, high privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to organizations running NETGEAR WAC505 or WAC510 access points below firmware 5.0.5.4, especially where administrative access is broadly available or poorly segmented.
Exploitation context
The provided sources do not report active exploitation, and the CVE is not listed as KEV. Exploitation requires authentication with high privileges and adjacent-network access, but successful exploitation could severely affect device confidentiality, integrity, and availability.
Researcher notes
The source bundle does not provide vulnerable parameters, proof-of-concept details, or CWE mapping. Analysis should remain version- and model-scoped to WAC505 and WAC510 before 5.0.5.4 unless additional vendor evidence is obtained.
Mitigation direction
- Inventory NETGEAR WAC505 and WAC510 access points.
- Upgrade affected firmware to at least version 5.0.5.4.
- Restrict management access to trusted administration networks.
- Review administrative accounts and remove unnecessary privileges.
- Check NETGEAR advisory guidance before deployment.
Validation and detection
- Confirm each device model and firmware version.
- Verify no WAC505 or WAC510 remains below 5.0.5.4.
- Review management interface exposure and network segmentation.
- Audit privileged access to access point administration.
- Monitor vendor advisories for updated guidance.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-21119 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
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/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:H/S:U/UI:N0.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000060239/Security-Advisory-for-Post-Authentication-Command-Injection-on-Some-Wireless-Access-Points-PSV-2018-0285CVE 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.