CVE-2025-59383
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedA buffer overflow vulnerability has been reported to affect Media Streaming Add-On. The remote attackers can then exploit the vulnerability to modify memory or crash processes. We have already fixed the vulnerability in the following version: Media Streaming Add-on 500.1.1 and later
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceA buffer overflow vulnerability in Media Streaming Add-On allows remote attackers to modify memory or crash processes, likely due to improper bounds checking when handling streaming data or user input.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 500.1.1.0CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Verify Media Streaming Add-On is installedAccess QNAP App Center or use system package management to list installed add-ons and confirm Media Streaming Add-On is presentAffected if Media Streaming Add-On is not installed on the system, the vulnerability does not apply
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Determine installed version of Media Streaming Add-OnCheck the version number of Media Streaming Add-On through QNAP App Center, system control panel, or command-line interface used for package managementAffected if The exact version number cannot be determined or the add-on is not found in standard installation locations
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Compare installed version against vulnerable rangeCompare the identified version to the affected range: versions earlier than 500.1.1.0 are vulnerable, version 500.1.1.0 and later are fixedAffected if Installed version is less than 500.1.1.0 - the system is affected by the buffer overflow vulnerability
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Verify Media Streaming Add-On service is runningCheck if the Media Streaming Add-On service or daemon is active on the system, as the buffer overflow requires the affected code to be executingAffected if The service is enabled and running, allowing remote attackers to trigger the buffer overflow via network requests to the streaming functionality
A system is affected if Media Streaming Add-On is installed with a version earlier than 500.1.1.0 and the streaming service is active and accessible on the network.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped500.1.1.0
Upgrade Media Streaming Add-On to version 500.1.1 or later to apply the vendor patch.
Media Streaming Add-on 500.1.1.0 or later
- Log in to the QNAP NAS admin interface (QTS or QuTScloud)
- Navigate to App Center or the application management section
- Locate Media Streaming Add-On in the installed applications
- Check the current installed version - if below 500.1.1.0, an update is required
- Update Media Streaming Add-On to version 500.1.1.0 or later through the QNAP update mechanism
- After update completes, verify the installed version is 500.1.1.0 or higher
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-59383 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2025-59383 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.
- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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