{"id":"CVE-2025-6516","summary":"HDF5 H5Fint.c H5F_addr_decode_len heap-based overflow","details":"A vulnerability has been found in HDF5 up to 1.14.6 and classified as critical. This vulnerability affects the function H5F_addr_decode_len of the file /hdf5/src/H5Fint.c. The manipulation leads to heap-based buffer overflow. An attack has to be approached locally. The exploit has been disclosed to the public and may be used.","modified":"2026-08-12T03:51:45.865379622Z","published":"2025-06-23T17:00:17.189Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6516.json","cna_assigner":"VulDB","cwe_ids":["CWE-119","CWE-122"]},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/6xxx/CVE-2025-6516.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-6516"},{"type":"ADVISORY","url":"https://vuldb.com/?id.313636"},{"type":"ADVISORY","url":"https://vuldb.com/?submit.592589"},{"type":"REPORT","url":"https://github.com/HDFGroup/hdf5/issues/5581"},{"type":"REPORT","url":"https://vuldb.com/?ctiid.313636"},{"type":"EVIDENCE","url":"https://github.com/user-attachments/files/20626851/reproduce.tar.gz"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/hdfgroup/hdf5","events":[{"introduced":"0553fb7ac7f03a919c91cdbbd5648b8aadbe05af"},{"last_affected":"7bf340440909d468dbb3cf41f0ea0d87f5050cea"}],"database_specific":{"source":["AFFECTED_FIELD","CPE_RANGE"],"cpe":"cpe:2.3:a:hdfgroup:hdf5:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"1.14.0"},{"last_affected":"1.14.0"},{"introduced":"1.14.1"},{"last_affected":"1.14.1"},{"introduced":"1.14.2"},{"last_affected":"1.14.2"},{"introduced":"1.14.3"},{"last_affected":"1.14.3"},{"introduced":"1.14.4"},{"last_affected":"1.14.4"},{"introduced":"1.14.5"},{"last_affected":"1.14.5"},{"introduced":"1.14.6"},{"last_affected":"1.14.6"},{"introduced":"0"}]}}],"versions":["1.14.0","1.14.1","1.14.2","1.14.3","1.14.4","1.14.5","1.14.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-6516.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P"}]}