CVE-2024-50395Public exploit

Media disclosure via spoofed trusted User-Agent

Published Nov 22, 2024 · Updated Nov 22, 2024

Authorization bypass in QNAP Media Streaming Add-on 500.1.x allows remote attackers on the local network to read stored media. Its HTTP parser treats spoofed AppleCoreMedia or QNAPDMC User-Agent values as trusted client types, causing request routing to omit the HTTP 401 denial. Unauthenticated access to TCP port 8200 is sufficient to browse ContentDirectory objects and download indexed media files, with no demonstrated write or service-interruption impact.

CVSS severity6.9
Medium
EPSS probability1.36%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Authorization bypass in QNAP Media Streaming Add-on 500.1.x allows remote attackers on the local network to read stored media. Its HTTP parser treats spoofed AppleCoreMedia or QNAPDMC User-Agent values as trusted client types, causing request routing to omit the HTTP 401 denial. Unauthenticated access to TCP port 8200 is sufficient to browse ContentDirectory objects and download indexed media files, with no demonstrated write or service-interruption impact.

The record

CVE
CVE-2024-50395
Published
Nov 22, 2024
Updated
Nov 22, 2024
Vendor
Linn Products Limited
Product
Media Streaming Add-on
Classifications
CWE-639, T1210
Attack vector
adjacent
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 22, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 22, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=500.1.0 <500.1.1.6
  2. Affected versionversion=500.1.x <500.1.1.6 ( 2024/08/02 )

What conditions does exploitation require?

Attack vectoradjacent
Required privilegesunauthenticated

What is affected?

Linn Products Limited · Media Streaming Add-onversion=500.1.0 <500.1.1.6; version=500.1.x <500.1.1.6 ( 2024/08/02 )

Published CVSS scores

6.9QNAP Systems, Inc.CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
8.8NIST NVDCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectoradjacent
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-639Authorization Bypass Through User-Controlled Key
T1210Exploitation of Remote Services

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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