CVE-2022-43749
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 · uneditedImproper privilege management vulnerability in summary report management in Synology Presto File Server before 2.1.2-1601 allows remote authenticated users to bypass security constraint 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 · moderate confidenceThis is a privilege management vulnerability in Synology Presto File Server's summary report management feature. It allows remote authenticated users to bypass security constraints through unspecified vectors, potentially enabling unauthorized access to or manipulation of summary reports that should be restricted based on user privileges.
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< 2.1.2-1601CVSS 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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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 installed Synology Presto File Server versionAccess the Synology DSM package center or run 'cat /etc/synology.json' or check the package information via the Synology web interface under Package Center > Presto File Server > InfoAffected if The installed version is lower than 2.1.2-1601 (e.g., 2.1.1-1500, 2.0.x, etc.)
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Verify summary report management feature is enabledNavigate to Presto File Server settings in the Synology admin interface and look for the summary report or reporting feature configuration under the management or reporting settingsAffected if The summary report feature is enabled and accessible to users
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Inspect user role and permission settings for summary reportsIn Synology DSM, go to Control Panel > User & Group > select a user > Edit > Applications tab, or check Presto-specific role permissions under Presto File Server privilege settingsAffected if Users with limited privileges (non-admin) have access to summary report management functions
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Check access control configurations for the summary report featureReview Presto File Server configuration files in /var/packages/PrestoFileServer/etc/ or through the Synology CLI if available, looking for any privilege or access control settings related to 'summary' or 'report'Affected if Access controls are misconfigured or allow privilege escalation to the summary report feature
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Audit recent access logs for summary report functionalityCheck Synology logs under Log Center or Presto-specific logs in /var/log/ for entries related to summary reports, report generation, or report management accessAffected if There are unauthorized or unexpected access attempts to summary report functions from lower-privileged accounts
A user is affected if they are running Synology Presto File Server version lower than 2.1.2-1601 AND have the summary report feature enabled with potentially misconfigured user permissions.
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 · scoped2.1.2-1601
Update Synology Presto File Server to version 2.1.2-1601 or later to obtain the vendor patch. Verify user role permissions and audit access controls for the summary report functionality after applying the update.
2.1.2-1601 or later (latest available version)
- Log into the Synology administrative interface where Presto File Server is installed
- Navigate to the Package Center or Presto File Server package management
- Check for available updates or manually verify the current installed version
- If the installed version is earlier than 2.1.2-1601, apply the update to version 2.1.2-1601 or later
- After updating, verify the new version is correctly installed
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation4.0 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-2022-43749 — 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-2022-43749 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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