CVE-2015-3977
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 · uneditedBuffer overflow in Schneider Electric IMT25 Magnetic Flow DTM before 1.500.004 for the HART Protocol allows remote authenticated users to execute arbitrary code or cause a denial of service (memory corruption) via a crafted HART reply.
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 confidenceBuffer overflow vulnerability in Schneider Electric IMT25 Magnetic Flow DTM (Device Type Manager) software for HART Protocol. The vulnerability exists in the parsing of HART protocol replies before version 1.500.004, allowing authenticated remote attackers to overflow a buffer and achieve arbitrary code execution or cause memory corruption leading to denial of service.
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<= 1.500.000CVSS 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
- Adjacent
- Complexity
- Low
- Authentication
- Single
- Confidentiality
- Complete
- Integrity
- Complete
- Availability
- Complete
AV:A/AC:L/Au:S/C:C/I:C/A:C
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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Verify IMT25 Magnetic Flow DTM is installedLocate the Schneider Electric IMT25 Magnetic Flow DTM software on the system. Check installed programs or the software's About/Version dialog if accessible.Affected if The software is present on the system
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Determine installed software versionAccess the version information for the IMT25 Magnetic Flow DTM, typically found in the software's About dialog, program properties, or by checking the executable's file version properties.Affected if The installed version is lower than 1.500.004 (versions 1.500.000 and below are confirmed affected)
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Confirm HART Protocol communication is enabledCheck if the DTM is configured to communicate using the HART Protocol. This is typically found in the software's communication settings, device configuration, or DTM properties.Affected if HART Protocol communication is enabled and the device is actively communicating via HART
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Check network exposure of the DTM serviceReview network configuration to determine if the IMT25 DTM service is exposed to network access. Check firewall rules and network segmentation around devices running this software.Affected if The service is accessible over the network without proper access controls
A user is affected if IMT25 Magnetic Flow DTM version 1.500.000 or below is installed, HART Protocol communication is enabled, and the system 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 dataUpdate IMT25 Magnetic Flow DTM to version 1.500.004 or later. If immediate patching is not possible, restrict network access to the affected device and ensure proper authentication controls are enforced for HART protocol communications.
- Consultation3.0 h
- Implementation4.0 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-2015-3977 — 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-2015-3977 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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