CVE-2025-64113
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 · uneditedEmby Server is a user-installable home media server. Versions below 4.9.1.81 allow an attacker to gain full administrative access to an Emby Server (for Emby Server administration, not at the OS level). Other than network access, no specific preconditions need to be fulfilled for a server to be vulnerable. This issue is fixed in version 4.9.1.81.
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 confidenceEmby Server versions below 4.9.1.81 contain an authentication/authorization bypass vulnerability that allows unauthenticated attackers to gain full administrative access to the Emby Server application through network access alone, without requiring any other preconditions.
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< 4.9.1.90= 4.9.2.6CVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/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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Check Emby Server installed version via web interfaceLog into the Emby Server web dashboard, navigate to Dashboard > General > About, and locate the version number displayed there.Affected if The displayed version is less than 4.9.1.90, or exactly equals 4.9.2.6.
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Check Emby Server version via command lineRun 'emby-server --version' from a terminal, or query the running service process (e.g., 'systemctl status emby-server' on Linux or check the service details on Windows).Affected if The version output is less than 4.9.1.90, or exactly equals 4.9.2.6.
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Verify network exposure of Emby ServerConfirm whether the Emby Server web interface is accessible from untrusted networks (check firewall rules, router port forwarding, or reverse proxy configuration exposing port 8096 or 8920).Affected if Port 8096/8920 or the Emby web interface is exposed to the internet or untrusted networks without strong network-level access controls.
You are affected if your installed Emby Server version is below 4.9.1.90 or exactly 4.9.2.6, and the server is accessible over 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 · scoped4.9.1.90
Upgrade Emby Server to version 4.9.1.81 or later to remediate this critical vulnerability.
Emby Server 4.9.1.81 or later (any version above 4.9.1.90 recommended to address all listed affected versions)
- Backup the Emby Server data and configuration files
- Stop the Emby Server service
- Download Emby Server version 4.9.1.81 or later from the official Emby website (github.com/ MediaBrowser/Emby)
- Install the upgraded Emby Server version
- Start the Emby Server service
- Verify the server is operational and review admin accounts for any unauthorized changes
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation1.0 h
- Implementation2.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,664.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-64113 — 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-2025-64113 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
- No spam, self-promotion, credentials, or personal data