{"id":"DEBIAN-CVE-2026-86095","details":"Unidata netcdf-c through 4.10.1 contains an out-of-bounds write vulnerability in NC4_HDF5_inq_attname() that copies HDF5 attribute names into a fixed 256-byte buffer without length validation. Attackers can craft HDF5 files with oversized attribute names to overflow the destination buffer, causing memory corruption and crashes when applications enumerate attribute names.","modified":"2026-09-25T08:47:30.581068585Z","published":"2026-09-04T23:18:03.220Z","upstream":["CVE-2026-86095"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-86095"}],"affected":[{"package":{"name":"netcdf","ecosystem":"Debian:12","purl":"pkg:deb/debian/netcdf?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.10.0-1","1:4.10.0-1~exp1","1:4.10.1-1","1:4.9.0-3","1:4.9.1-1~exp1","1:4.9.1~rc1-1~exp1","1:4.9.1~rc2-1~exp1","1:4.9.2-1","1:4.9.2-1~exp1","1:4.9.2-2","1:4.9.2-3","1:4.9.2-3.1~exp1","1:4.9.2-4","1:4.9.2-4~exp1","1:4.9.2-5","1:4.9.2-6","1:4.9.2-7","1:4.9.3-1","1:4.9.3-1~exp1","1:4.9.3-1~exp2","1:4.9.3~rc1-1~exp1","1:4.9.3~rc2-1~exp1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Debian:13","purl":"pkg:deb/debian/netcdf?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.10.0-1","1:4.10.0-1~exp1","1:4.10.1-1","1:4.9.3-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Debian:14","purl":"pkg:deb/debian/netcdf?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.10.0-1","1:4.10.0-1~exp1","1:4.10.1-1","1:4.9.3-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86095.json"}},{"package":{"name":"netcdf-parallel","ecosystem":"Debian:12","purl":"pkg:deb/debian/netcdf-parallel?arch=source&distro=bookworm"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.10.0-1","1:4.10.1-1","1:4.10.1-2","1:4.9.0-1","1:4.9.0-3","1:4.9.0-4","1:4.9.0-5","1:4.9.0-6","1:4.9.3-1","1:4.9.3-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86095.json"}},{"package":{"name":"netcdf-parallel","ecosystem":"Debian:13","purl":"pkg:deb/debian/netcdf-parallel?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.10.0-1","1:4.10.1-1","1:4.10.1-2","1:4.9.3-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86095.json"}},{"package":{"name":"netcdf-parallel","ecosystem":"Debian:14","purl":"pkg:deb/debian/netcdf-parallel?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.10.0-1","1:4.10.1-1","1:4.10.1-2","1:4.9.3-2"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-86095.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/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/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X"}]}