CVE-2021-34314
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 · uneditedA vulnerability has been identified in JT2Go (All versions < V13.2), Teamcenter Visualization (All versions < V13.2). The BMP_loader.dll library in affected applications lacks proper validation of user-supplied data when parsing SGI files. This could result in an out of bounds write past the end of an allocated structure. An attacker could leverage this vulnerability to execute code in the context of the current process. (ZDI-CAN-13355)
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 BMP_loader.dll when parsing SGI image files. The library fails to validate user-supplied data properly, leading to an out-of-bounds write beyond allocated structure boundaries. This allows remote code execution in the context of the current process.
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< 13.2.0< 13.2.0CVSS 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
- Local
- Complexity
- Low
- Privileges
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/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.
-
Check if Siemens Jt2go is installedLook for Jt2go installation directory (commonly in C:\Program Files\Siemens\ or check registry under HKLM\SOFTWARE\Siemens\JT2Go), or locate Jt2go.exe in the systemAffected if Jt2go is present on the system
-
Check if Siemens Teamcenter Visualization is installedLook for Teamcenter Visualization installation (commonly in C:\Program Files\Siemens\ or check registry under HKLM\SOFTWARE\Siemens\Teamcenter), or locate visualization executablesAffected if Teamcenter Visualization is present on the system
-
Determine installed version of Jt2goRight-click on Jt2go.exe, select Properties, and check the File Version field under the Details tab; alternatively check the version in Add/Remove ProgramsAffected if Version is present but below 13.2.0
-
Determine installed version of Teamcenter VisualizationRight-click on the main visualization executable (such as TeamcenterVisualization.exe or teacentervis.exe), select Properties, and check the File Version field; alternatively check the version in Add/Remove ProgramsAffected if Version is present but below 13.2.0
-
Locate BMP_loader.dll in the installationSearch the product installation directory for BMP_loader.dll and check its file properties to confirm the library version if visibleAffected if BMP_loader.dll exists and no patch version information indicates V13.2 or later
The environment is affected if either Siemens Jt2go or Teamcenter Visualization is installed with a version number lower than 13.2.0, since the vulnerable BMP_loader.dll library is present in those versions.
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 data13.2.0
Upgrade JT2Go and Teamcenter Visualization to version V13.2 or later to obtain the patched BMP_loader.dll library.
- Consultation1.0 h
- Implementation1.0 h
- Testing2.0 h
- Review / QA1.0 h
An estimate, not a bill — we confirm scope with you before any work starts. Need it this week? Rush from $1,376.
Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2021-34314 — 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-2021-34314 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
Be the first to add a field note for this CVE — a mitigation you’ve verified, a version caveat, or a link to a working fix. Sign in above to contribute.
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