{"id":"CVE-2025-6856","url":"https://www.cyber-defence.io/tools/cve/CVE-2025-6856","generatedAt":"2026-10-28T02:19:12.864Z","title":"A vulnerability, which was classified as problematic, was found in HDF5 1.14.6.","description":"A vulnerability, which was classified as problematic, was found in HDF5 1.14.6. Affected is the function H5FL__reg_gc_list of the file src/H5FL.c. The manipulation leads to use after free. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used.","published":"2025-06-29T10:15:21.000Z","lastModified":"2026-06-17T10:02:42.000Z","status":"Analyzed","sourceIdentifier":"cna@vuldb.com","cvss":{"version":"4.0","score":1.9,"severity":"LOW","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-119","CWE-416"],"affected":["hdfgroup/hdf5"],"epss":{"score":0.00248,"percentile":0.15955,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"low","text":"Lower severity and a low EPSS score (0.25%). Track it; it rarely justifies an emergency change on its own."},"changes":[],"references":[{"url":"https://github.com/HDFGroup/hdf5/issues/5574","tags":["Exploit","Issue Tracking","Third Party Advisory"],"source":"cna@vuldb.com"},{"url":"https://github.com/user-attachments/files/20623417/hdf5_crash_6.txt","tags":["Exploit"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?ctiid.314328","tags":["Permissions Required"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?id.314328","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"},{"url":"https://vuldb.com/?submit.602528","tags":["Third Party Advisory","VDB Entry"],"source":"cna@vuldb.com"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2025-6856","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}