CVE-2025-32397
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 Heap-based Buffer Overflow in RT-Labs P-Net version 1.0.1 or earlier allows an attacker to induce a crash in IO devices that use the library by sending a malicious RPC packet.
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 confidenceA heap-based buffer overflow vulnerability exists in RT-Labs P-Net library versions 1.0.1 and earlier. The vulnerability is triggered by parsing a maliciously crafted RPC packet, causing a heap buffer overflow that leads to a crash in IO devices using the affected library.
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< 1.0.2CVSS 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
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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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Locate P-Net library in the environmentSearch for P-Net related files, libraries, or installed packages. Common patterns: 'p-net', 'pnet', 'rt-labs' in filenames, library paths, or package managers. Check /usr/lib, /usr/local/lib, or project dependencies.Affected if P-Net library files or dependencies are found in the environment
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Identify installed P-Net versionCheck the version of the P-Net library by examining: library file metadata (ldd, file version info), package manager output (dpkg, rpm, pip list), or version header files in source code if compiling from source.Affected if Installed version is 1.0.1 or earlier (any version below 1.0.2)
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Verify RPC packet processing is enabledExamine application or device configuration to determine if P-Net's RPC protocol stack is active. This typically involves checking PROFINET IO device configuration files or runtime settings that enable network packet parsing.Affected if RPC packet processing or PROFINET IO communication is enabled in the configuration
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Check for crash logs or memory corruption indicatorsReview system logs, application crash dumps, or memory dump files for evidence of heap buffer overflows or unexpected process termination related to P-Net RPC handling.
Environment is affected if P-Net version is below 1.0.2 AND RPC packet processing feature is actively used in the application or device configuration.
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.
dbcve · scoped1.0.2
Upgrade to a patched version of P-Net when available, or implement input validation and bounds checking on RPC packet processing to prevent heap corruption.
P-Net 1.0.2 or later
- Identify all deployments and applications that use the RT-Labs P-Net library
- Locate the P-Net library version in use (check build files, dependencies, or library binaries)
- If the installed version is earlier than 1.0.2, obtain P-Net version 1.0.2 or later from the official RT-Labs distribution
- Update the dependency or replace the library binary in your project to version 1.0.2 or later
- Rebuild and redeploy any applications or IoT devices that depend on the P-Net library
- Verify the upgrade was successful by checking the library version after deployment
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA3.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2025-32397 — 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-2025-32397 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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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.
- 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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