dbcve.org
Router ManagerOperating system · Synology

CVE-2025-29846

HIGH · 7.2 CVSS v3.1 Published 2025-12-04
Fix available
A fix is available. Upgrade to 1.3.1-9346 or later.
See remediation →
78/100
Remediation priority · High
Remotely reachable Zero-click

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 · unedited
A vulnerability in portenable cgi allows remote authenticated users to get the status of installed packages.

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 · moderate confidence

A vulnerability in the portenable CGI component allows remote authenticated users to query the status of installed packages on the target system. This represents an information disclosure issue where improper access controls on the CGI interface permit unauthorized enumeration of system package information.

MitigationImplement proper authorization checks on the portenable CGI interface to ensure only privileged users can access package status information. Restrict package query functionality to authorized administrators only.

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
Router ManagerOperating system
Affected:>= 1.3, < 1.3.1-9346= 1.3.1-9346

CVSS 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
High
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:H/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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify Synology Router Manager version
    Check the installed SRM version in the system management interface or via command line (e.g., 'cat /etc/VERSION' or through the web admin panel under 'Control Panel' > 'Update & Restore' > 'DSM version'). Compare the version number against the affected ranges: >= 1.3 and < 1.3.1-9346, or exactly 1.3.1-9346.
    Affected if The installed version falls within >= 1.3, < 1.3.1-9346 or equals 1.3.1-9346.
  2. Confirm portenable CGI component is present
    Locate the 'portenable' CGI binary or script in the web interface directory (typically under /usr/syno/synoman/webapi/ or similar paths accessible via the web interface). Verify its existence and accessibility via HTTP/HTTPS requests to the Synology Router Manager.
    Affected if The portenable CGI component is found and accessible on the SRM web interface.
  3. Test package status query functionality
    Send an authenticated HTTP request to the portenable CGI endpoint (e.g., via curl or a browser) with parameters to query package status information. Use credentials for a non-privileged or standard user account to determine if package information is returned without authorization checks.
    Affected if Package status information is returned to an authenticated user who should not have access to this data.
  4. Review access control configuration
    Examine the access control settings for the portenable CGI component in the SRM configuration or web server settings. Check if there are role-based restrictions properly configured for the package query function.
    Affected if The portenable CGI lacks proper role-based access controls or permits package queries for non-administrative users.

A user is affected if their Synology Router Manager version is >= 1.3 and the portenable CGI component exposes package status information to unauthorized authenticated users.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 · scoped
Upgrade available Upgrade to 1.3.1-9346 or later
Fixed in 1.3.1-9346
Interim mitigation

Implement proper authorization checks on the portenable CGI interface to ensure only privileged users can access package status information. Restrict package query functionality to authorized administrators only.

Recommended fix Moderate confidence

Router Manager version > 1.3.1-9346 (latest available version from Synology)

  1. Log into the Synology Router Manager web interface
  2. Navigate to Control Panel > System > Update & Restore
  3. Click 'Check for Updates' or manually download the latest Router Manager firmware from Synology's download center
  4. Apply the update to install a version higher than 1.3.1-9346
  5. Verify the update was successful by checking the Router Manager version in the System Information section

Generated from the published advisory — verify against the referenced sources before acting.

Fix this in Router Manager Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing6.0 h
  • Review / QA4.0 h
22.0 hours of engineering $3,860
Get the upgrade done

An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $6,176.

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-29846 in production — separate from our analysis above.

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What this is

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.

What belongs here
  • 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