Security readout for executives and security teams
Plain-English summary
This CVE affects several NETGEAR router models with older firmware. An unauthenticated attacker on an adjacent network could trigger a stack-based buffer overflow, risking full confidentiality, integrity, and availability impact. The provided sources do not show known active exploitation.
Executive priority
Prioritize remediation where affected routers protect business networks or sensitive environments. The issue is high severity and unauthenticated, but current evidence does not show confirmed active exploitation.
Technical view
CVE-2017-18723 is a pre-authentication stack-based buffer overflow affecting NETGEAR D6200 before 1.1.00.24 and R6700v2, R6800, R6900v2 before 1.1.0.42. CVSS 3.0 is 8.8 with adjacent-network attack vector, low complexity, no privileges, and no user interaction.
Likely exposure
Exposure is limited to environments running the listed NETGEAR models below the fixed firmware versions. The CVSS vector indicates adjacent-network reachability, not a confirmed internet-wide attack path from the provided sources.
Exploitation context
The source bundle does not include exploit code, a proof of concept, or KEV listing. Treat this as a high-severity pre-auth router flaw, but do not claim active exploitation without additional evidence.
Researcher notes
The public bundle gives product/version impact and CVSS, but not the vulnerable component, endpoint, CWE, or trigger details. Validation should stay version-based unless NETGEAR publishes deeper technical indicators.
Mitigation direction
- Identify D6200, R6700v2, R6800, and R6900v2 routers in inventory.
- Update D6200 to 1.1.00.24 or later per NETGEAR guidance.
- Update R6700v2, R6800, and R6900v2 to 1.1.0.42 or later.
- Check the NETGEAR advisory for model-specific firmware instructions.
- Retire or isolate devices that cannot be updated.
Validation and detection
- Compare each router model and firmware version against the affected version list.
- Confirm upgraded devices report the fixed firmware version or later.
- Review asset records for any remaining listed NETGEAR models.
- Document network placement to understand adjacent-network exposure.
- Track remediation evidence against the NETGEAR advisory.
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-2017-18723 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/000052274/Security-Advisory-for-Pre-Authentication-Stack-Overflow-on-Routers-PSV-2017-2145CVE 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.