Security readout for executives and security teams
Plain-English summary
CVE-2018-14035 is a reported memory-read flaw in HDF5 1.8.20. Software that opens HDF5 data files could read beyond a heap buffer when handling crafted input. The public record does not provide a severity score, affected CPEs, or a named fix.
Executive priority
Make this a targeted dependency cleanup item. Escalate priority if HDF5 parsing is exposed to customers, uploads, research partners, or automated data ingestion from outside the organization.
Technical view
The CVE describes a heap-based buffer over-read in H5VM_memcpyvv in H5VM.c in HDF HDF5 1.8.20. Metadata is sparse: no CVSS, CWE, CPE, or vendor remediation is included in the supplied sources.
Likely exposure
Exposure is most likely where applications, data pipelines, scientific tools, or services use HDF5 1.8.20 and process HDF5 files from users, partners, or other untrusted sources.
Exploitation context
The source bundle includes a public proof-of-concept reference, but CISA KEV is false and no cited source states active exploitation. Business risk depends on whether HDF5 file parsing is reachable by untrusted input.
Researcher notes
Evidence is incomplete. The record names the vulnerable function and version, but lacks scoring, root-cause detail, CPEs, and remediation. Avoid assuming affected downstream products without dependency confirmation.
Mitigation direction
- Inventory systems and applications using HDF5 1.8.20.
- Check HDF Group or distributor guidance for fixed versions.
- Prioritize services that parse externally supplied HDF5 files.
- Restrict or sandbox untrusted HDF5 file processing.
- Rebuild dependent software after updating the HDF5 library.
Validation and detection
- Confirm installed HDF5 versions through SBOMs or dependency manifests.
- Identify workflows that accept HDF5 files from external parties.
- Review crash telemetry for HDF5 parser faults.
- Verify upgraded components no longer use HDF5 1.8.20.
- Document residual exposure where upgrades are unavailable.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
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CVE-2018-14035 mapping review
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Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://github.com/TeamSeri0us/pocs/blob/master/hdf5/README2.mdCVE reference · x_refsource_MISC
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.