CVE Explorer
CVE-2026-29043
HDF5 is software for managing data. In 1.14.1-2 and earlier, an attacker who can control an h5 file parsed by HDF5 can trigger a write-based heap buffer overflow condition in the H5T__ref_mem_setnull method. This can lead to a denial-of-service condition, and potentially further issues such as remote code execution depending on the practical exploitability of the heap overflow against modern operating systems.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"hdf5","vendor":"HDFGroup","versions":[{"status":"affected","version":"<= 1.14.1-2"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:8985275fdbff6d6c1577804b0881b1ffaf217a99c9c3589bc64a01937011f718 · sha256:ca27dc3c3cd9d999… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"HIGH","baseScore":5.5,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:8985275fdbff6d6c1577804b0881b1ffaf217a99c9c3589bc64a01937011f718 · sha256:ca27dc3c3cd9d999… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-122","description":"CWE-122: Heap-based Buffer Overflow","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:8985275fdbff6d6c1577804b0881b1ffaf217a99c9c3589bc64a01937011f718 · sha256:ca27dc3c3cd9d999… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"name":"https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277","tags":["x_refsource_CONFIRM"],"url":"https://github.com/HDFGroup/hdf5/security/advisories/GHSA-qm2m-5g5w-2277"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:8985275fdbff6d6c1577804b0881b1ffaf217a99c9c3589bc64a01937011f718 · sha256:ca27dc3c3cd9d999… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.