Security readout for executives and security teams
Plain-English summary
This is a high-severity NETGEAR router flaw where an unauthenticated nearby network attacker could trigger a stack overflow. Successful exploitation could compromise confidentiality, integrity, and availability. The provided sources do not show active exploitation.
Executive priority
Prioritize remediation where affected routers protect sensitive networks or support business operations. The issue is high impact, unauthenticated, and low complexity, but provided evidence limits likely attack reach to adjacent networks.
Technical view
CVE-2017-18718 is a pre-authentication stack-based buffer overflow affecting specified NETGEAR D6200, R6700v2, R6800, and R6900v2 firmware versions. CVSS 3.0 is 8.8 with adjacent-network attack vector, low complexity, no privileges, no user interaction, and high CIA impact.
Likely exposure
Exposure is most likely where affected NETGEAR router models remain in service below the fixed firmware versions: D6200 before 1.1.00.24, and R6700v2, R6800, R6900v2 before 1.1.0.42.
Exploitation context
The source bundle identifies unauthenticated exploitation and adjacent-network reachability. It does not include exploit details, public exploitation evidence, or CISA KEV listing. Treat exploit status as unconfirmed from the supplied evidence.
Researcher notes
The bundle lacks CWE mapping, detailed root cause, exploit availability, and CPE-normalized affected products. Use the vendor advisory and CVE record as primary sources, and avoid assuming broader NETGEAR impact beyond named models.
Mitigation direction
- Upgrade affected NETGEAR routers to the fixed firmware versions or later.
- Check the NETGEAR advisory for current vendor guidance before remediation.
- Replace unsupported or unpatchable affected routers.
- Restrict administrative and local network exposure to trusted users only.
Validation and detection
- Inventory NETGEAR D6200, R6700v2, R6800, and R6900v2 devices.
- Verify each router firmware version against the affected version thresholds.
- Confirm no affected device remains below the vendor-fixed firmware version.
- Review network placement for adjacent-network exposure to untrusted users.
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-2017-18718 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/000052279/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Routers-PSV-2017-2152CVE 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.