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CVE Record

CVE-2018-20373: Tenda ADSL modem routers 1.0.1 allow XSS via the hostname of a DHCP client.

Tenda ADSL modem routers 1.0.1 allow XSS via the hostname of a DHCP client.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysismoderate

Security readout for executives and security teams

Plain-English summary

CVE-2018-20373 describes cross-site scripting in Tenda ADSL modem routers running version 1.0.1 through a DHCP client hostname. In practical terms, a device on the local network may be able to place unsafe text where the router administration interface displays client names. The source bundle does not provide a CVSS score, model list, or confirmed fix.

Executive priority

Treat this as a moderate, asset-dependent risk. It is not KEV-listed and no active exploitation is cited, but router administration compromise can affect network control. Prioritize identification and isolation of affected legacy Tenda devices.

Technical view

The CVE record states that Tenda ADSL modem routers 1.0.1 allow XSS via the hostname of a DHCP client. The available bundle does not identify specific router models, whether the issue is stored or reflected, authentication conditions, browser impact, or vendor remediation. KEV status is false, so active exploitation is not established by the provided sources.

Likely exposure

Exposure is most likely limited to environments still using Tenda ADSL modem routers on firmware version 1.0.1, especially where untrusted devices can join the LAN or DHCP segment. Product and CPE data are incomplete in the provided record.

Exploitation context

The provided sources indicate an XSS condition tied to DHCP hostname handling. They do not establish internet-scale exploitation, public weaponization, or confirmed active exploitation. Impact likely depends on an administrator or privileged user viewing affected router management pages.

Researcher notes

Evidence is thin: the CVE description names only Tenda ADSL modem routers 1.0.1 and DHCP hostname-based XSS. The source bundle lacks model identifiers, CWE, CVSS, patch status, and exploitability prerequisites. Avoid broad claims beyond affected firmware confirmation.

Mitigation direction

  • Inventory Tenda ADSL modem routers and confirm firmware versions.
  • Check Tenda or reseller guidance for firmware updates or replacement options.
  • Restrict router administration access to trusted management hosts only.
  • Limit untrusted device access to DHCP-enabled network segments.
  • Replace unsupported affected routers if no vendor fix is available.

Validation and detection

  • Confirm whether any deployed Tenda ADSL modem router reports firmware 1.0.1.
  • Review DHCP client-name display areas in the admin UI for unsafe rendering risk.
  • Check whether the router management interface is reachable from guest or untrusted networks.
  • Verify whether vendor firmware newer than 1.0.1 is available for the exact model.
Prepared
Confidence
medium
Sources
4

Public sources used

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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-2018-20373 mapping review

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Vulnerability profileCVE Program record
Severity
Unknown
CVSS
Not scored
Known Exploited
No
Published
Official CVE source material

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.

0CVSS vectors
0Timeline events
0ADP providers
3Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus
n/an/an/aListed
Weakness

CWE details

No CWE listed

CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.