CVE-2023-5759
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 · uneditedIn Helix Core versions prior to 2023.2, an unauthenticated remote Denial of Service (DoS) via the buffer was identified. Reported by Jason Geffner.
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 confidenceAn unauthenticated remote attacker can trigger a buffer-based condition in Helix Core servers prior to version 2023.2 that causes a Denial of Service. The vulnerability is network-exploitable without authentication and stems from improper buffer handling in the server component.
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< 2023.2CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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 if Helix Core server is runningRun `p4 info 2>/dev/null` or `ps aux | grep p4d` to see if the p4d process is activeAffected if No p4d process running means Helix Core is not deployed and not affected
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Identify Helix Core versionRun `p4 info -s` and look for the Server version or `p4d -V` command to get the exact version numberAffected if Unable to determine version means further investigation needed
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Compare version to affected rangeCheck if the installed version is earlier than 2023.2 - version format typically appears as YYYY.N or like 2023.1, 2022.2, etc.Affected if Version is below 2023.2 (e.g., 2023.1, 2022.2, 2021.2) indicates the server is vulnerable
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Verify server is network-accessibleCheck if the p4d port is exposed externally using `netstat -tlnp | grep 1666` or review firewall rulesAffected if Server port 1666 (default) is exposed to untrusted networks increases exploitability
The environment is affected if a Helix Core p4d server is running with a version earlier than 2023.2 and is network-accessible to unauthenticated attackers.
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 · scoped2023.2
Upgrade Helix Core to version 2023.2 or later. If immediate upgrade is not feasible, consider network segmentation or restricting access to the server until the patch can be applied.
2023.2
- Verify current Helix Core version using 'p4 info' or 'p4 -V' command
- Download Helix Core server version 2023.2 or later from Perforce website
- Review Perforce upgrade documentation for your deployment type
- Stop the Helix Core server ('p4 admin stop' or equivalent)
- Backup Helix Core database and configuration files per standard backup procedures
- Install version 2023.2 server binaries
- Start the upgraded Helix Core server
- Verify server is operational and accessible
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
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $3,328.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-5759 — 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-2023-5759 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