Security readout for executives and security teams
Plain-English summary
Certain NETGEAR routers have a pre-authentication buffer overflow. An attacker does not need login credentials, and successful exploitation could seriously affect confidentiality, integrity, and availability. The CVSS vector indicates adjacent-network access, so exposure is most relevant where attackers can reach the local or nearby network path to the router.
Executive priority
Treat this as a high-priority infrastructure hygiene issue. It affects edge networking devices, requires no attacker credentials, and can have full security impact. Prioritize firmware verification and upgrades, especially for business sites or shared networks where adjacent access is plausible.
Technical view
CVE-2017-18744 is a high-severity buffer overflow in specified NETGEAR router firmware before listed fixed versions. CVSS 3.0 is 8.8 with AV:A, AC:L, PR:N, UI:N, and high C/I/A impact. The source bundle does not include CWE mapping, exploit details, or proof-of-concept evidence.
Likely exposure
Affected environments use R6250, R6300v2, R6700, R6900, R7000, R7900, R8000, or R8500 routers running firmware below the fixed versions. Exposure depends on whether an unauthenticated adjacent-network attacker can reach the vulnerable router interface or service.
Exploitation context
The CVE and NETGEAR advisory describe unauthenticated pre-authentication impact, but the bundle does not cite active exploitation. CISA KEV status is false. No public exploit status, payload, or exploited-in-the-wild claim is supported by the provided sources.
Researcher notes
The reliable facts are limited to affected models, fixed firmware thresholds, CVSS vector, and NETGEAR advisory linkage. The bundle does not identify the exact vulnerable component, CWE, exploit maturity, or detection artifacts. Avoid asserting remote internet exploitability beyond the adjacent-network CVSS vector.
Mitigation direction
- Upgrade affected routers to the NETGEAR fixed firmware versions or later.
- Prioritize routers in offices, guest networks, and exposed shared network locations.
- If firmware is unavailable, check NETGEAR guidance and plan device replacement.
- Restrict router access to trusted local networks until remediation is complete.
Validation and detection
- Inventory NETGEAR router models against the affected model list.
- Compare installed firmware with the fixed versions named in the advisory.
- Confirm vulnerable devices are no longer running pre-fix firmware.
- Review network placement for adjacent-network access risk.
- Track remediation evidence in the vulnerability management system.
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-2017-18744 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/000051511/Security-Advisory-for-Pre-Authentication-Buffer-Overflow-on-Some-Routers-PSV-2017-0324CVE 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.