Polyeco500 FirmwareOperating system · Sielco

CVE-2023-46665

CRITICAL · 9.8 CVSS v3.1 Published 2023-10-26
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

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 · unedited
Sielco PolyEco1000 is vulnerable to an authentication bypass vulnerability due to an attacker modifying passwords in a POST request and gain unauthorized access to the affected device with administrative privileges.

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 confidence

The Sielco PolyEco1000 contains an authentication bypass vulnerability where attackers can modify passwords via a crafted POST request, allowing unauthorized access to the device with administrative privileges.

MitigationUntil an official vendor patch is released, implement network segmentation to restrict access to the device, monitor for suspicious password modification requests, and consider additional authentication layers such as VPN or IP whitelisting.

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
Polyeco500 FirmwareOperating system
Affected:= 1.7.0= 10.16
Polyeco300 FirmwareOperating system
Affected:= 2.0.0= 2.0.2= 10.19
Polyeco1000 FirmwareOperating system
Affected:= 1.9.3= 1.9.4= 2.0.6= 10.19

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
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 checks

Work through these to decide whether this CVE applies to you.

  1. Identify the device model
    Access the device web interface or check the device label/boot screen for the exact model name (Polyeco500, Polyeco300, or Polyeco1000)
    Affected if The device is not a Sielco PolyEco model (the vulnerability only applies to Polyeco series)
  2. Check the firmware version
    Log into the device web interface and navigate to System Info, Status, or About section to view the installed firmware version
    Affected if The firmware version matches one of the affected versions: 1.7.0 or 10.16 for Polyeco500; 2.0.0, 2.0.2, or 10.19 for Polyeco300; 1.9.3, 1.9.4, 2.0.6, or 10.19 for Polyeco1000
  3. Verify if the web management interface is network-accessible
    Check if TCP ports used by the device web interface (commonly 80, 443, or vendor-specific ports) are listening on external interfaces or accessible from untrusted networks
    Affected if The web management interface is exposed to untrusted networks (the vulnerability is exploited via crafted POST requests to this interface)
  4. Review access logs for password-related POST requests
    Examine device logs, web server logs, or syslog exports for unusual POST requests to password change or user management endpoints, especially from unexpected IP addresses
    Affected if There are POST requests to password modification endpoints that were not initiated by legitimate administrators

You are affected if you have a Sielco Polyeco500, Polyeco300, or Polyeco1000 device running one of the listed firmware versions with its web interface network-accessible.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

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 data
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Until an official vendor patch is released, implement network segmentation to restrict access to the device, monitor for suspicious password modification requests, and consider additional authentication layers such as VPN or IP whitelisting.

Fix this in Polyeco500 Firmware Scoped from the published advisory
  • Consultation4.0 h
  • Implementation8.0 h
  • Testing4.0 h
  • Review / QA2.0 h
18.0 hours of engineering $3,200
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Scan for this in your stack

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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2023-46665 in production — separate from our analysis above.

No notes yet

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What this is

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.

What belongs here
  • 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