Security readout for executives and security teams
Plain-English summary
Some NETGEAR routers and gateways have a pre-authentication stack buffer overflow. An attacker who can reach the device on an adjacent network could trigger serious compromise impacts without logging in. This is high urgency for environments still running the listed older firmware.
Executive priority
Treat this as a high-priority legacy network-device risk. The key decision is whether any listed NETGEAR devices remain in production or remote-office use with outdated firmware.
Technical view
CVE-2017-18730 affects specific NETGEAR D6200, R6020, R6080, R6120, R6700v2, R6800, and R6900v2 firmware versions. The CVSS 3.0 score is 8.8 with adjacent-network attack vector, low complexity, no privileges, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is most likely where affected NETGEAR devices remain on firmware older than the fixed versions and are reachable from local or adjacent network segments.
Exploitation context
The provided sources do not state active exploitation, and the CVE is not marked KEV. The vulnerability is still serious because no authentication or user interaction is required once the attacker has adjacent-network reachability.
Researcher notes
Do not assume Internet-wide exploitability from the CVSS vector; AV:A indicates adjacent-network access. Sources confirm affected models and fixed-version thresholds but do not provide exploit details, indicators, or active exploitation evidence.
Mitigation direction
- Upgrade affected devices to the NETGEAR fixed firmware version or later.
- Prioritize D6200, R6020, R6080, R6120, R6700v2, R6800, and R6900v2 inventory checks.
- Consult the NETGEAR advisory for device-specific firmware guidance.
- Replace unsupported devices if fixed firmware is unavailable from NETGEAR.
Validation and detection
- Inventory NETGEAR router and gateway models across business and remote-office networks.
- Compare firmware versions against the affected version list in the CVE description.
- Confirm upgraded devices report the fixed firmware version or later.
- Document any still-vulnerable devices and their network adjacency exposure.
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-2017-18730 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
- 8.8 (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: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:N/S:U/UI:N2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
8.8HighVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000051525/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Some-Routers-and-Gateways-PSV-2017-2134CVE 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.