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CVE Record

CVE-2017-7638: QNAP NAS application Media Streaming add-on version 421.1.0.2, 430.1.2.0, and earlier does not authenticate...

QNAP NAS application Media Streaming add-on version 421.1.0.2, 430.1.2.0, and earlier does not authenticate requests properly. Successful exploitation could lead to change of the Media Streaming settings, and leakage of sensitive information of the QNAP NAS.

UnknownCVSS not scoredNot KEV-listedUpdated
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Glexia's TakeAutomated analysisunknown

Security readout for executives and security teams

Plain-English summary

CVE-2017-7638 affects QNAP NAS devices running the Media Streaming add-on versions 421.1.0.2, 430.1.2.0, and earlier. The add-on did not properly authenticate some requests, which could let an attacker change media streaming settings or access sensitive NAS information. Public scoring and exploit evidence were not provided in the source bundle.

Executive priority

Prioritize inventory and remediation for QNAP NAS devices that are internet-facing, store sensitive data, or support business-critical workflows. Urgency is constrained by missing CVSS and exploit evidence, but NAS data exposure can create meaningful operational and confidentiality risk.

Technical view

The vulnerability is an improper request authentication issue in QNAP Media Streaming Add-On. The CVE description states successful exploitation could modify Media Streaming settings and leak sensitive QNAP NAS information. No CVSS vector, CWE mapping, technical root-cause detail, patch version, or exploit method is included in the provided sources.

Likely exposure

Exposure is limited to QNAP NAS environments where the Media Streaming add-on is installed at version 421.1.0.2, 430.1.2.0, or earlier. Internet-facing NAS services would create higher operational concern, but the source bundle does not state required network reachability or attack prerequisites.

Exploitation context

The source bundle does not cite active exploitation, and the CVE is not marked in CISA KEV. Treat exploitation status as unconfirmed. The disclosed impact is unauthorized settings change and sensitive information leakage, but no public exploit details are provided here.

Researcher notes

The public bundle is sparse: no CVSS, CWE, exploit prerequisites, fixed version, or detailed affected platform matrix is included. Analysis should remain tied to the named QNAP Media Streaming add-on versions and the stated impacts of settings modification and sensitive information leakage.

Mitigation direction

  • Review QNAP advisory NAS-201803-08 for vendor-approved remediation guidance.
  • Update or replace affected Media Streaming add-on versions where QNAP guidance provides a fixed release.
  • Restrict NAS and media service access to trusted networks or VPN paths.
  • Disable the Media Streaming add-on if it is unnecessary.
  • Review NAS configuration for unauthorized Media Streaming setting changes.

Validation and detection

  • Inventory QNAP NAS devices and identify installed Media Streaming add-on versions.
  • Flag versions 421.1.0.2, 430.1.2.0, and earlier as affected.
  • Confirm whether NAS interfaces or media services are reachable from untrusted networks.
  • Review administrative and application logs for unexpected Media Streaming configuration changes.
  • Check whether sensitive NAS information could be exposed through the affected add-on.
Prepared
Confidence
medium
Sources
3

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-2017-7638 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
2Source 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
QNAPQNAP Media Streaming Add-On421.1.0.2, 430.1.2.0, and earlierListed
Weakness

CWE details

No CWE listed

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