CVE-2020-20183
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 · uneditedInsecure direct object reference vulnerability in Zyxel’s P1302-T10 v3 with firmware version 2.00(ABBX.3) and earlier allows attackers to gain privileges and access certain admin pages.
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 confidenceIDOR vulnerability in Zyxel P1302-T10 v3 firmware versions 2.00(ABBX.3) and earlier allows attackers to bypass authorization checks by manipulating object references (likely request parameters or IDs), enabling unauthorized access to privileged admin pages and privilege escalation.
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= 2.00CVSS 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
- None
- Availability
- None
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
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 device modelCheck the device label on the physical device or access the web admin interface to confirm the model is Zyxel P1302-T10 v3Affected if Device is not a Zyxel P1302-T10 v3, then not affected
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Determine firmware versionLog into the web admin interface and navigate to the Status or Management page to view the firmware version, or check the version displayed on the login pageAffected if Firmware version is 2.00(ABBX.3) or any version earlier than 2.00(ABBX.3)
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Confirm admin web interface is accessibleAttempt to access the device's web admin interface over HTTP/HTTPS (typically on ports 80 or 443) from the networkAffected if The web admin interface is exposed and reachable on the network - this is required for the IDOR to be exploitable
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Check for unauthorized object reference accessWhile logged into the admin interface with a low-privilege account (or unauthenticated), attempt to access privileged admin pages by manipulating URL parameters, object IDs, or session values that reference admin functionsAffected if Manipulating object references in requests grants access to pages or functions beyond the current user's authorized privileges
The device is affected if it is a Zyxel P1302-T10 v3 running firmware version 2.00(ABBX.3) or earlier AND the web admin 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 dataApply vendor firmware patch when available; prior to patch, restrict network access to the device's administrative interface using firewall rules or ACLs to limit exposure to untrusted networks.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-20183 — 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-2020-20183 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
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