{"id":"CVE-2026-19029","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-19029","generatedAt":"2026-10-28T01:00:55.855Z","title":"A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets an attacker cause a denial of service (application crash) with a crafted HDF5 file.","description":"A heap-based buffer over-read in H5Z__filter_scaleoffset() in src/H5Zscaleoffset.c in HDF5 through 2.2.0 lets an attacker cause a denial of service (application crash) with a crafted HDF5 file. When the stored minimum bits equal the full precision of the datatype, the decoder copies d_nelmts * size bytes from the compressed chunk without checking that the chunk holds that many bytes. Both values come from attacker-controlled scale-offset filter parameters in the dataset's filter pipeline message.","published":"2026-10-06T21:17:20.000Z","lastModified":"2026-10-07T17:16:54.000Z","status":"Awaiting Analysis","sourceIdentifier":"0253b833-3e77-4dfe-9d57-17db1a2f0a74","cvss":{"version":"4.0","score":6.8,"severity":"MEDIUM","vector":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-125"],"affected":[],"epss":{"score":0.00118,"percentile":0.01703,"date":"2026-10-26","history":[{"date":"2026-10-07","score":0.00118,"percentile":0.0155}]},"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 (0.12%). Track it; it rarely justifies an emergency change on its own."},"changes":[{"kind":"new","label":"New CVE","at":"2026-10-06T21:17:20.000Z","detail":{"score":"6.8","severity":"MEDIUM","publishedAt":"2026-10-06T21:17:20.410Z"},"summary":"New CVE, medium severity (CVSS 6.8)."}],"references":[{"url":"https://github.com/HDFGroup/hdf5/pull/6718","source":"0253b833-3e77-4dfe-9d57-17db1a2f0a74"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-19029","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."}