CVE-2025-12686
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 · uneditedBuffer copy without checking size of input ('Classic Buffer Overflow') vulnerability in AdminCenter in Synology BeeStation OS before 1.3.2-65648 allows remote attackers to execute arbitrary code via unspecified vectors.
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 classic buffer overflow vulnerability exists in the AdminCenter web interface of Synology BeeStation OS. The vulnerability stems from copying data to a fixed-size buffer without validating the input size, allowing remote attackers to overwrite adjacent memory and execute arbitrary code.
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>= 1.0, < 1.3.2CVSS 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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Confirm Synology BeeStation OS is in useIdentify the device model or system information to verify it is a Synology BeeStation deviceAffected if Device is not a Synology BeeStation (not applicable)
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Check installed OS versionAccess the system settings or administrative interface to retrieve the current BeeStation OS version numberAffected if Version is 1.0 or higher but below 1.3.2 (the vulnerable range)
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Determine AdminCenter accessibilityVerify whether the AdminCenter web interface is enabled and reachable on the networkAffected if AdminCenter is accessible and version is in the affected range
A system is affected if it is a Synology BeeStation running OS version 1.0 through 1.3.1 with the AdminCenter interface accessible.
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 · scoped1.3.2
Update Synology BeeStation OS to version 1.3.2-65648 or later to patch the vulnerability. If immediate patching is not possible, restrict network access to the AdminCenter interface using firewall rules or VPN access controls.
1.3.2-65648
- Log in to the BeeStation AdminCenter web interface
- Navigate to Control Panel > System > Update & Restore
- Check the current firmware version under System Information
- In the Update section, verify that version 1.3.2-65648 is available
- Click Download and Install to apply the update
- Wait for the system to reboot and complete the update process
- Verify the firmware version shows 1.3.2-65648 after the update completes
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2025-12686 — 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-2025-12686 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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- 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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