Security readout for executives and security teams
Plain-English summary
CVE-2017-18803 is a NETGEAR R7800 router security misconfiguration affecting firmware before 1.0.2.30. The public record indicates a local attacker could impact integrity, but it does not show confidentiality or availability impact.
Executive priority
Treat as a moderate-priority router hygiene issue. Prioritize remediation where R7800 devices protect offices, small sites, or sensitive local networks, especially if untrusted users can access the environment.
Technical view
The CVSS v3.0 vector is AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N. This means local access, low complexity, no privileges, no user interaction, unchanged scope, and high integrity impact. The source data does not describe the specific misconfiguration.
Likely exposure
Exposure is limited to NETGEAR R7800 routers running firmware earlier than 1.0.2.30, based on the provided sources. No other models or product families are identified in the bundle.
Exploitation context
The CVE is not listed as KEV in the provided bundle, and no cited source claims active exploitation. The local attack vector lowers broad internet-scale risk but still matters for exposed or shared physical environments.
Researcher notes
Public details are sparse. The record identifies a security-settings misconfiguration and CVSS impact, but not the exact setting, affected configuration path, or exploitation method. Avoid assuming remote exploitability or broader NETGEAR impact.
Mitigation direction
- Inventory NETGEAR R7800 routers and record firmware versions.
- Upgrade affected devices to NETGEAR firmware 1.0.2.30 or later, if available.
- Review NETGEAR advisory guidance before applying changes.
- Restrict physical and local network access to router administration surfaces.
- Monitor vendor support status for any replacement or additional guidance.
Validation and detection
- Confirm each R7800 reports firmware version 1.0.2.30 or later.
- Check asset inventory for remaining R7800 devices below the fixed version.
- Review router administration access controls after remediation.
- Document any devices that cannot be updated and their compensating controls.
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-2017-18803 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
- Medium
- CVSS
- 6.2 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/A:N/C:N/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:L/A:N/C:N/I:H/PR:N/S:U/UI:N2.53.6Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.2MediumVector: CVSS:3.0/AC:L/AV:L/A:N/C:N/I:H/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049063/Security-Advisory-for-Security-Misconfiguration-Vulnerability-on-R7800-Routers-PSV-2017-0136CVE 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.