CVE-2020-12513
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 · uneditedPepperl+Fuchs Comtrol IO-Link Master in Version 1.5.48 and below is prone to an authenticated blind OS Command Injection.
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 confidencePepperl+Fuchs Comtrol IO-Link Master versions 1.5.48 and below contain an authenticated blind OS command injection vulnerability. An attacker with valid credentials can inject malicious OS commands through the affected interface, which are executed without returning output to the attacker (blind injection). This could allow complete compromise of the device.
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<= 1.5.48<= 1.5.48<= 1.5.48<= 1.5.48<= 1.5.48<= 1.5.48<= 1.5.48<= 1.5.48CVSS 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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Identify the IO-Link Master modelAccess the device web interface or administrative console and locate the device information or status page. Confirm the exact product name matches one of the affected variants: IO-Link Master 4 Eip, IO-Link Master 8 Eip, IO-Link Master 8 Eip L, IO-Link Master Dr 8 Eip, IO-Link Master Dr 8 Eip P, IO-Link Master Dr 8 Eip T, IO-Link Master 4 Pnio, or IO-Link Master 8 Pnio.Affected if The model matches one of the listed affected products.
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Check the installed firmware versionIn the device web interface, navigate to the firmware or software version information section. Record the firmware version number displayed.Affected if The firmware version is 1.5.48 or lower.
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Verify web management interface accessibilityAttempt to access the device HTTP/HTTPS management interface from the network. Confirm whether the login page is reachable.Affected if The management interface is exposed on the network and accessible without additional network restrictions.
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Confirm authentication is configuredCheck if valid user credentials are required to access the management interface. Review the user accounts or authentication settings in the device configuration.Affected if The interface uses default or weak credentials, or authentication can be bypassed.
The environment is affected if the device is one of the listed IO-Link Master models with firmware version 1.5.48 or lower and the management interface is network-accessible with valid credentials.
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 dataUpdate the IO-Link Master firmware to a version newer than 1.5.48. If patching is not immediately feasible, restrict network access to the management interface to trusted IP addresses and enforce strong authentication credentials.
- Consultation4.0 h
- Implementation4.0 h
- Testing8.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2020-12513 — 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-2020-12513 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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