Security readout for executives and security teams
Plain-English summary
This issue affects specific older NETGEAR routers and one extender. A command injection flaw could let an attacker with local access and high privileges run unintended commands on the device. Business urgency is moderate: impact can be severe on vulnerable devices, but the published CVSS vector shows significant access prerequisites.
Executive priority
Treat this as a targeted remediation item for legacy network equipment. It is not presented as actively exploited in the supplied evidence, but vulnerable devices can have high business impact if compromised because routers and extenders sit in sensitive network positions.
Technical view
CVE-2017-18802 is a command injection vulnerability in listed NETGEAR firmware versions. CVSS 3.0 score is 6.7 with local attack vector, low complexity, high privileges required, no user interaction, and high confidentiality, integrity, and availability impact.
Likely exposure
Exposure is limited to environments still running the named NETGEAR models below the fixed firmware versions. The bundle names R6100, R7500, R7500v2, R7800, EX6200v2, and D7800. Exact vulnerable interface details are not provided in the supplied sources.
Exploitation context
The CVE is not listed as KEV in the bundle, and no supplied source states active exploitation. The CVSS vector indicates exploitation requires local access and high privileges, but successful exploitation could fully affect device confidentiality, integrity, and availability.
Researcher notes
The supplied record lacks CWE detail, vulnerable endpoint detail, exploit conditions beyond CVSS, and proof-of-exploit status. Analysis should avoid assuming remote reachability. The strongest grounded facts are the command injection class, affected model and firmware list, NETGEAR advisory reference, and CVSS access requirements.
Mitigation direction
- Upgrade affected devices to the fixed firmware versions named in the CVE record.
- Review the NETGEAR advisory for model-specific vendor guidance.
- Inventory NETGEAR edge devices and identify legacy firmware.
- Restrict device administration to trusted local users and networks.
- Replace unsupported devices if fixed firmware is unavailable.
Validation and detection
- Confirm whether any listed NETGEAR models exist in the environment.
- Compare installed firmware against the fixed versions in the CVE description.
- Check whether device management access is limited to trusted networks.
- Verify remediation through firmware version evidence after updates.
- Document exceptions where devices cannot be upgraded.
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.
Execution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2017-18802 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
- 6.7 (3.0)
- Known Exploited
- No
- Published
Vector: CVSS:3.0/AC:L/AV:L/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:L/A:H/C:H/I:H/PR:H/S:U/UI:N0.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.0 score
6.7MediumVector: CVSS:3.0/AC:L/AV:L/A:H/C:H/I:H/PR:H/S:U/UI:N
Source materials
- CVE List V5 sourceCVE List V5
- https://kb.netgear.com/000049354/Security-Advisory-for-Command-Injection-Vulnerability-on-D7000-EX6200v2-and-Some-Routers-PSV-2017-2181CVE 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.