CVE-2020-14508
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 · uneditedGateManager versions prior to 9.2c, The affected product is vulnerable to an off-by-one error, which may allow an attacker to remotely execute arbitrary code or cause a denial-of-service condition.
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 · high confidenceGateManager versions prior to 9.2c contain an off-by-one error, a memory corruption vulnerability that allows remote attackers to overwrite adjacent memory boundaries. This can enable remote code execution or cause denial-of-service conditions. The critical CVSS score (9.8) indicates the vulnerability is network-exploitable without authentication.
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= 9.2cCVSS 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
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/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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Identify GateManager device modelLocate the Secomea GateManager hardware unit and verify it is model 8250, or check the device documentation/inventory for the model number.Affected if Device is a Secomea GateManager 8250
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Determine installed firmware versionAccess the GateManager web interface or admin console and navigate to the System Information or Firmware/Version settings page to view the current firmware version number.Affected if Firmware version cannot be determined or is not visible
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Compare version against affected rangeCompare the installed firmware version to the affected range. Versions prior to 9.2c are affected. Version 9.2c and later are fixed.Affected if Installed version is less than 9.2c (for example, 9.2, 9.1, 9.0, or earlier)
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Verify remote management interface exposureCheck network configuration to determine if the GateManager management interface (typically ports 80/443 or custom admin ports) is accessible from untrusted networks or the public internet.Affected if Management interface is exposed to untrusted networks without network segmentation or firewall protection
You are affected if the Secomea GateManager 8250 is running firmware version lower than 9.2c and its management interface is network-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 dataUpgrade GateManager to version 9.2c or later to obtain the vendor patch addressing the off-by-one error. If immediate patching is not possible, restrict network access to the GateManager management interface.
- Consultation4.0 h
- Implementation8.0 h
- Testing12.0 h
- Review / QA6.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $8,192.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-14508 — 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-2020-14508 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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