Security readout for executives and security teams
Plain-English summary
Some Arris TG1682G gateways supplied by ISPs used a default admin password and exposed administration over unencrypted local HTTP. Someone already on the local network could potentially access the admin interface and bypass intended restrictions. This is not documented here as internet-wide remote exploitation.
Executive priority
Treat as a practical local-network risk, especially for unmanaged ISP gateways in offices or remote-worker environments. Prioritize inventory and credential changes over emergency response unless local compromise indicators exist.
Technical view
CVE-2018-10989 describes Arris Touchstone Telephony Gateway TG1682G firmware 9.1.103J6 distributed by some ISPs with default admin credentials over http://192.168.0.1. The prerequisite is local network access. No CVSS, CWE, vendor patch, or KEV exploitation signal is provided in the source bundle.
Likely exposure
Exposure is most likely in homes, branches, or small offices still using ISP-provided Arris TG1682G gateways on version 9.1.103J6 with unchanged admin credentials.
Exploitation context
The source bundle does not show active exploitation or KEV listing. Abuse requires access to the local network, then interaction with the gateway admin interface. The unencrypted HTTP channel increases risk on shared or compromised local networks.
Researcher notes
Evidence is limited to the CVE record and linked disclosure reference. The affected configuration is specific, but the bundle lacks CVSS scoring, vendor advisory details, patch status, and proof of active exploitation.
Mitigation direction
- Change the gateway admin password from the ISP default.
- Restrict local network access to trusted users and devices.
- Ask the ISP or vendor for current firmware, replacement, or hardening guidance.
- Avoid managing the gateway from untrusted or shared networks.
Validation and detection
- Inventory whether any sites use Arris TG1682G gateways.
- Confirm firmware version and ISP-supplied configuration status.
- Verify the admin password has been changed from the default.
- Check whether gateway administration is reachable only from trusted local segments.
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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Credential and access behavior lookup
The CVE wording references authentication or credential exposure, so valid-account and credential-access review may help. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2018-10989 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
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 and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://medium.com/%40AkshaySharmaUS/comcast-arris-touchstone-gateway-devices-are-vulnerable-heres-the-disclosure-7d603aa9342cCVE reference · x_refsource_MISC
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.