CVE-2020-14232
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 · uneditedA vulnerability in the input parameter handling of HCL Notes v9 could potentially be exploited by an authenticated attacker resulting in a stack buffer overflow. This could allow the attacker to crash the program or inject code into the system which would execute with the privileges of the currently logged in user.
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 confidenceA stack buffer overflow vulnerability exists in HCL Notes v9's input parameter handling. An authenticated attacker can exploit this to potentially crash the program or inject and execute malicious code with the privileges of the currently logged-in user.
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= 9.0= 9.0.1CVSS 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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Confirm HCL Notes installationCheck for HCL Notes installation directory (typically C:\Program Files\HCL\Notes or C:\Program Files (x86)\HCL\Notes) or look for HCL Notes entries in Add/Remove ProgramsAffected if HCL Notes is not installed on the system
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Identify installed Notes versionOpen HCL Notes client, go to Help > About HCL Notes, or check the version in the executable properties (notes.exe), or run 'notes -version' from command lineAffected if The version shown is 9.0 or 9.0.1 specifically
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Verify vulnerable version rangeCompare your installed version number against the affected versions 9.0 and 9.0.1. Note that intermediate fix packs may also be affected - consult HCL security advisories for complete version coverageAffected if The installed version matches exactly 9.0 or 9.0.1, or falls within this release line without appropriate patches
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Check authentication requirementsThe vulnerability requires an authenticated user session. Verify if user accounts are configured and Active Directory or Domino Directory integration is enabled for Notes authenticationAffected if Notes is configured with user authentication enabled, allowing authenticated attackers to trigger the vulnerable input parameter handling
You are affected if HCL Notes version 9.0 or 9.0.1 is installed and the client is configured for authenticated user access, since the vulnerability resides in input parameter handling accessible to authenticated sessions.
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 dataApply vendor-supplied patches or updates from HCL for Notes v9. If patches are unavailable, implement input validation controls and consider restricting authenticated access to trusted users only.
- Consultation6.0 h
- Implementation12.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,448.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-14232 — 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-2020-14232 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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