CVE-2020-7837
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 · uneditedAn issue was discovered in ML Report Program. There is a stack-based buffer overflow in function sub_41EAF0 at MLReportDeamon.exe. The function will call vsprintf without checking the length of strings in parameters given by attacker. And it finally leads to a stack-based buffer overflow via access to crafted web page. This issue affects: Infraware ML Report 2.19.312.0000.
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 confidenceStack-based buffer overflow in Infraware ML Report's MLReportDeamon.exe. The function sub_41EAF0 calls vsprintf without validating string length from user-supplied web page parameters, allowing an attacker to overflow the stack and potentially achieve remote code execution.
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<= 2.18.723.6228CVSS 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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Identify installed Polaris ML Report versionCheck the program's version through Windows Programs and Features, or use the command: wmic product where "name like '%Polaris%' or name like '%ML%' get name,version"Affected if version displayed is 2.18.723.6228 or lower
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Locate MLReportDeamon.exe processOpen Task Manager or use command: tasklist /FI "IMAGENAME eq MLReportDeamon.exe"Affected if the MLReportDeamon.exe process is running on the system
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Confirm the service is listening on network portsRun command: netstat -an | findstr "LISTENING" and check for ports associated with the ML Report service (commonly ports 8080, 8081, or 80/443)Affected if the ML Report service is bound to a listening network port, indicating the web interface is accessible
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Compare version against affected rangeDocument the exact version number found in step 1 and compare against the affected range: any version <= 2.18.723.6228 is vulnerableAffected if installed version number is 2.18.723.6228 or any lower version number
A system is affected if Polaris ML Report version 2.18.723.6228 or lower is installed AND the MLReportDeamon.exe service with its web interface is running and accessible.
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 dataReplace vsprintf with vsnprintf and implement proper input length validation before string operations. Apply vendor patch for version 2.19.312.0000 or upgrade to patched version.
- Consultation3.0 h
- Implementation6.0 h
- Testing8.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-7837 — 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-2020-7837 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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