CVE-2024-32258
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 · uneditedThe network server of fceux 2.7.0 has a path traversal vulnerability, allowing attackers to overwrite any files on the server without authentication by fake ROM.
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 confidenceThe network server component of fceux 2.7.0 contains a path traversal vulnerability that allows unauthenticated remote attackers to overwrite arbitrary files on the server by submitting a specially crafted fake ROM file. The server fails to properly validate file paths when processing ROM files received over the network, allowing path traversal sequences (such as '../') to escape the intended upload directory and write files anywhere the server process has write permissions.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 fceux installation and versionRun 'fceux --version' or check the executable file properties to identify the installed version of fceux.Affected if The installed version is 2.7.0 (or an unspecified version that falls within the vulnerable range)
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Identify if the network server feature is enabledLook for running processes related to fceux network server, check for open network ports commonly used by fceux (typically UDP/TCP ports in the 4046-4048 range), or examine any configuration files or command-line arguments that enable the network server functionality.Affected if The network server component is actively running or configured to run
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Verify network server configuration for file handling settingsExamine any configuration files (such as fceux.cfg) or command-line options related to the network ROM server feature, specifically looking for settings that control where received ROM files are stored.Affected if Network server is configured to save received ROM files to a writable directory without strict path validation
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Check file system permissions on the serverIdentify the user context the fceux network server runs as and check what directories that user has write access to.Affected if The server process has write permissions to sensitive directories outside the intended ROM upload folder
A user is affected if fceux 2.7.0 is installed with the network server feature enabled and configured to accept incoming ROM file transfers, allowing path traversal to escape the upload directory.
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.
From vendor dataRestrict or disable the network server feature if not required; if needed, implement strict path validation that canonicalizes paths and rejects any containing traversal sequences before file operations, and ensure the server process runs with minimal file system privileges.
- Consultation2.0 h
- Implementation4.0 h
- Testing3.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2024-32258 — 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-2024-32258 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
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