CVE-2023-7339
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 · uneditedStack-based buffer overflow vulnerability in Softing Industrial Automation GmbH gateways allows overflow buffers. This issue affects pnGate: through 1.30 epGate: through 1.30 mbGate: through 1.30 smartLink HW-DP: through 1.30 smartLink HW-PN: through 1.01.
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 stack-based buffer overflow vulnerability exists in multiple Softing Industrial Automation gateway products (pnGate, epGate, mbGate, smartLink HW-DP, smartLink HW-PN). The overflow occurs when processing input data that exceeds buffer boundaries on the stack, potentially allowing an attacker to overwrite return addresses or adjacent memory locations.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
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
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:L/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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Identify Softing gateway products on the networkInventory network devices and confirm the presence of pnGate, epGate, mbGate, smartLink HW-DP, or smartLink HW-PN devices. Check device labels, management interfaces, or network scans for these product names.Affected if Any of these five Softing Industrial Automation gateway models are present in the environment
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Determine firmware version of affected devicesAccess each device's management interface or use vendor-specific diagnostic commands to retrieve the installed firmware version. Compare against vendor release notes if available.Affected if The installed firmware version predates any vendor-provided update addressing this vulnerability
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Verify network exposure of gateway input processingCheck if the device's data input processing functionality is accessible from network segments outside the local control system. Review firewall rules, access control lists, and device network binding configuration.Affected if Input data processing ports or services are reachable from untrusted network segments
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Inspect for anomalous gateway behaviorReview device logs, network traffic captures, and intrusion detection alerts for signs of buffer overflow attempts, unexpected crashes, or memory corruption patterns related to data input handling.Affected if Logs or traffic shows evidence of malformed input data causing unexpected device behavior
The environment is likely affected if any Softing pnGate, epGate, mbGate, smartLink HW-DP, or smartLink HW-PN devices with accessible input processing functionality are present and running firmware versions prior to vendor patches.
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-provided firmware updates when available; until then, network segment gateways behind firewalls, restrict access to authorized personnel only, and monitor for anomalous traffic patterns.
- Consultation4.0 h
- Implementation8.0 h
- Testing6.0 h
- Review / QA4.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2023-7339 — 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-2023-7339 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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