Security readout for executives and security teams
Plain-English summary
CVE-2017-18719 affects several NETGEAR router models with a pre-authentication stack buffer overflow. An attacker who can reach the affected network interface may cause serious compromise without logging in. The affected firmware ranges are known, but the provided sources do not show active exploitation.
Executive priority
Treat as a high-priority network device remediation issue, especially for branch or small-office routers. Schedule firmware updates or replacements promptly.
Technical view
The CVE describes an unauthenticated stack-based buffer overflow in specific NETGEAR routers. CVSS 3.0 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 limited to listed NETGEAR models running older firmware: D6200, R6020, R6080, R6700v2, R6800, and R6900v2 before the cited fixed versions.
Exploitation context
The bundle does not cite CISA KEV listing or other active exploitation evidence. Risk remains material because authentication is not required and impact is high.
Researcher notes
The source bundle identifies affected models and fixed-version thresholds but does not include exploit mechanics, CWE mapping, or vendor mitigation text beyond the advisory reference.
Mitigation direction
- Upgrade D6200 to 1.1.00.24 or later.
- Upgrade R6020 and R6080 to 1.1.00.26 or later.
- Upgrade R6700v2, R6800, and R6900v2 to 1.1.0.42 or later.
- Check NETGEAR advisory for model-specific firmware guidance.
- Replace affected devices if supported firmware is unavailable.
Validation and detection
- Inventory NETGEAR router models across offices, labs, and remote sites.
- Record firmware versions for each affected model.
- Compare versions against the fixed firmware thresholds in the CVE description.
- Confirm remediation by rechecking firmware versions after maintenance.
- Document any affected devices 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
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CVE-2017-18719 mapping review
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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/000052278/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Routers-PSV-2017-2150CVE 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.