CVE-2017-12821
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 · uneditedMemory corruption in Gemalto's HASP SRM, Sentinel HASP and Sentinel LDK products prior to Sentinel LDK RTE version 7.55 might cause remote code execution.
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 confidenceMemory corruption vulnerability in Gemalto's HASP SRM, Sentinel HASP and Sentinel LDK software license protection products allows remote code execution. The flaw exists in versions prior to Sentinel LDK RTE 7.55, enabling attackers to exploit heap or stack memory corruption to execute arbitrary code.
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<= 7.50CVSS 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
- High
- Availability
- High
CVSS:3.0/AV:N/AC:L/PR:N/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 installed Sentinel softwareCheck system for presence of Sentinel HASP, Sentinel LDK, or HASP SRM license protection software by reviewing installed programs in Control Panel or using system inventory toolsAffected if Any of these products are found on the system
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Determine installed version of Sentinel LDK RTELocate the Sentinel LDK RTE installation and check its version information, typically found in program files directory or via the installed software listAffected if Version is identified as 7.50 or lower, or any version prior to 7.55
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Check if Sentinel service is running and exposedReview running services related to Sentinel (hasp, ldk, or sentinel-related services) and check network configuration to determine if the service is bound to network interfaces or accessible remotelyAffected if The Sentinel licensing service is running and accessible over the network
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Inspect process listening on licensing portsIdentify processes listening on common Sentinel licensing ports (usually port 1947) using netstat or similar network inspection toolsAffected if A Sentinel licensing service process is found listening on network ports
The system is affected if Sentinel LDK RTE version 7.50 or lower (or any version before 7.55) is installed, particularly if the licensing service 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.
dbcve · scopedUpgrade Sentinel LDK RTE to version 7.55 or later to remediate the memory corruption vulnerability. If immediate patching is not feasible, restrict network exposure of systems running the affected software and monitor for indicators of compromise.
Sentinel LDK RTE version 7.55 or later
- Identify the current version of Sentinel LDK RTE installed on the system
- Download Sentinel LDK RTE version 7.55 or later from Gemalto's official vendor website
- Uninstall the current version of Sentinel LDK RTE (version 7.50 or earlier)
- Install the new version 7.55 or later
- Verify the installation was successful and the version is correct
- Restart any dependent services or applications that use the Sentinel licensing components
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation4.0 h
- Implementation2.0 h
- Testing8.0 h
- Review / QA4.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $4,928.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2017-12821 — 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-2017-12821 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
- No spam, self-promotion, credentials, or personal data