Security readout for executives and security teams
Plain-English summary
This CVE affects NETGEAR R8000 routers running firmware before 1.0.4.2. An already authenticated user near the network could trigger a stack-based buffer overflow. Business urgency is moderate because impact could be severe on the device, but the attacker needs privileged access and adjacent network reach.
Executive priority
Treat as a moderate-priority network infrastructure hygiene issue. Prioritize remediation where R8000 routers protect business networks, remote offices, labs, or environments with shared administrative access.
Technical view
CVE-2017-18761 is a post-authentication stack-based buffer overflow in NETGEAR R8000 firmware before 1.0.4.2. The CVSS 3.0 score is 6.8 with adjacent-network attack vector, low complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to NETGEAR R8000 devices on firmware earlier than 1.0.4.2. Organizations may miss these devices if consumer-grade routers are used in branch, lab, home-office, or unmanaged network segments.
Exploitation context
The provided sources do not show CISA KEV listing, active exploitation, or public exploitation evidence. Exploitation requires authenticated high-privilege access and adjacent network position, reducing broad internet-scale risk but increasing concern where router credentials are shared or weakly governed.
Researcher notes
Evidence is sparse in the provided bundle: the CVE description and NETGEAR advisory identify product, version boundary, and bug class, but not detailed vulnerable parameters or exploit status. Avoid assuming broader NETGEAR model impact without vendor confirmation.
Mitigation direction
- Identify all NETGEAR R8000 devices in managed and unmanaged network inventories.
- Update affected R8000 firmware to version 1.0.4.2 or later.
- Review NETGEAR advisory guidance for any model-specific remediation details.
- Restrict router administration access to trusted administrators and trusted network segments.
- Rotate router administrator credentials where access history is unclear.
Validation and detection
- Confirm each R8000 firmware version is 1.0.4.2 or later.
- Verify router administration is not reachable from untrusted adjacent networks.
- Review administrator account membership and remove unnecessary privileged users.
- Check asset records for branch, lab, and home-office R8000 deployments.
- Document remediation status and exceptions for vulnerability management tracking.
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-2017-18761 mapping review
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Open ATT&CK lookup- Severity
- Medium
- CVSS
- 6.8 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/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:H/S:U/UI:N0.95.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.8MediumVector: CVSS:3.0/AC:L/AV:A/A:H/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000051484/Security-Advisory-for-Post-Authentication-Stack-Overflow-on-R8000-PSV-2017-2229CVE 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.