Security readout for executives and security teams
Plain-English summary
Some NETGEAR routers had a flaw that could let an attacker read files from the device. The business risk is exposure of sensitive router configuration or secrets. The source bundle does not show active exploitation or internet-wide exploitation evidence.
Executive priority
Prioritize remediation where affected routers protect offices, executives, remote sites, or sensitive networks. The issue is not listed as actively exploited, but configuration disclosure on edge devices can create follow-on risk.
Technical view
CVE-2017-18847 is an arbitrary file read affecting listed NETGEAR router models before specified firmware versions. CVSS 3.0 is 6.2 with local attack vector, low complexity, no privileges, no user interaction, and high confidentiality impact.
Likely exposure
Exposure is limited to the named NETGEAR models running older firmware: R6400v2, R6900P/R7000P, R7900, R8300, R8500, and D8500. The CVSS vector indicates local access is required.
Exploitation context
The bundle marks CISA KEV as false and provides no cited evidence of active exploitation. Treat exploit status as unconfirmed from these sources. The weakness still matters because arbitrary file read can disclose sensitive device data.
Researcher notes
The source bundle has limited technical detail: no CWE, no proof-of-concept, and no attack path beyond arbitrary file read. The CVSS vector is local, confidentiality-only, and unauthenticated, so validation should focus on model, firmware, and access conditions.
Mitigation direction
- Upgrade affected models to firmware versions at or above the fixed releases named in NETGEAR's advisory.
- If firmware is unavailable, follow NETGEAR guidance for replacement or retirement decisions.
- Restrict local access to router management interfaces and trusted network segments.
- Remove unsupported affected devices from production networks.
Validation and detection
- Inventory NETGEAR R6400v2, R6900P, R7000P, R7900, R8300, R8500, and D8500 devices.
- Compare installed firmware against the fixed versions listed in the CVE description.
- Confirm router management access is limited to trusted local networks.
- Check NETGEAR advisory guidance for model-specific update instructions.
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-2017-18847 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:H/I:N/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:H/I:N/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:H/I:N/PR:N/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049012/Security-Advisory-for-Arbitrary-File-Read-on-Some-Routers-PSV-PSV-2017-0783CVE 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.