Security readout for executives and security teams
Plain-English summary
CVE-2017-18830 is a high-severity privilege escalation issue in specific NETGEAR fully managed switches. A user with low-level access could gain higher privileges, creating risk to network device control, configuration integrity, and availability. The affected versions are before firmware 12.0.2.15 for listed M4300 and M4200 models.
Executive priority
Prioritize remediation for affected switches that support critical network segments or have shared operational access. The issue is high impact, but the provided evidence suggests it needs low-privileged access rather than unauthenticated remote access.
Technical view
The CVE describes vertical privilege escalation on NETGEAR M4300 and M4200 switch models before 12.0.2.15. CVSS 3.0 is 7.8 with local attack vector, low privileges required, no user interaction, unchanged scope, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely in environments running affected NETGEAR M4300 or M4200 fully managed switches on firmware earlier than 12.0.2.15, especially where non-administrative users can access the switch locally or through management paths.
Exploitation context
The provided sources do not show CISA KEV listing or active exploitation evidence. The CVSS vector indicates exploitation requires prior low-privileged access and is not described as remote unauthenticated exploitation in the source bundle.
Researcher notes
The public bundle is sparse: no CWE, no exploit details, and affected CPE data is not populated. Treat the firmware threshold and affected model list as the primary source-grounded exposure criteria. Avoid assuming broader NETGEAR product impact without vendor confirmation.
Mitigation direction
- Inventory NETGEAR M4300 and M4200 switches in production and lab networks.
- Upgrade affected devices to firmware 12.0.2.15 or later where available.
- Review NETGEAR advisory guidance before applying changes.
- Restrict switch management access to trusted administrators and management networks.
- Remove unnecessary low-privileged accounts from affected devices.
Validation and detection
- Confirm each affected switch model and firmware version from asset records or device management.
- Verify no listed model remains below firmware 12.0.2.15.
- Review switch account roles for unnecessary low-privileged access.
- Check management-plane exposure against network segmentation policy.
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.
Privilege behavior lookup
The CVE wording references privilege impact, so privilege escalation and authorization behavior review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-18830 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
- 7.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/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:L/A:H/C:H/I:H/PR:L/S:U/UI:N1.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
7.8HighVector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:L/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049021/Security-Advisory-for-Vertical-Privilege-Escalation-on-Some-Fully-Managed-Switches-PSV-2017-1205CVE 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.