{"id":"UBUNTU-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":"2026-09-16T14:03:45.360416302Z","published":"2026-09-04T23:18:00Z","upstream":["CVE-2026-86095"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-86095"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-86095"}],"affected":[{"package":{"name":"netcdf","ecosystem":"Ubuntu:14.04:LTS","purl":"pkg:deb/ubuntu/netcdf?arch=source&distro=trusty"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.1.3-6build1","1:4.1.3-7","1:4.1.3-7ubuntu2"],"ecosystem_specific":{"binaries":[{"binary_name":"libcf0","binary_version":"1:4.1.3-7ubuntu2"},{"binary_version":"1:4.1.3-7ubuntu2","binary_name":"libnetcdfc++4"},{"binary_version":"1:4.1.3-7ubuntu2","binary_name":"libnetcdfc7"},{"binary_version":"1:4.1.3-7ubuntu2","binary_name":"libnetcdff5"},{"binary_version":"1:4.1.3-7ubuntu2","binary_name":"netcdf-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/netcdf?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.4.0~rc2-1build1","1:4.4.0~rc3-1","1:4.4.0-1","1:4.4.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf11","binary_version":"1:4.4.0-2"},{"binary_name":"netcdf-bin","binary_version":"1:4.4.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/netcdf?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.4.1.1-2ubuntu1","1:4.5.0-1","1:4.5.0-2","1:4.6.0-2","1:4.6.0-2build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf13","binary_version":"1:4.6.0-2build1"},{"binary_name":"netcdf-bin","binary_version":"1:4.6.0-2build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/netcdf?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.6.2-1build1","1:4.7.3-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf15","binary_version":"1:4.7.3-1"},{"binary_name":"netcdf-bin","binary_version":"1:4.7.3-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf-parallel","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/netcdf-parallel?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.6.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf-mpi-13","binary_version":"1:4.6.2-1"},{"binary_name":"libnetcdf-pnetcdf-13","binary_version":"1:4.6.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/netcdf?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.7.4-1build1","1:4.8.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf19","binary_version":"1:4.8.1-1"},{"binary_version":"1:4.8.1-1","binary_name":"netcdf-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf-parallel","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/netcdf-parallel?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.7.4-1","1:4.8.1-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf-mpi-19","binary_version":"1:4.8.1-2"},{"binary_version":"1:4.8.1-2","binary_name":"libnetcdf-pnetcdf-19"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/netcdf?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1:4.9.2-2ubuntu1","1:4.9.2-3ubuntu1","1:4.9.2-5ubuntu3","1:4.9.2-5ubuntu4"],"ecosystem_specific":{"binaries":[{"binary_name":"libnetcdf19t64","binary_version":"1:4.9.2-5ubuntu4"},{"binary_version":"1:4.9.2-5ubuntu4","binary_name":"netcdf-bin"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-86095.json"}},{"package":{"name":"netcdf-parallel","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/netcdf-parallel?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"ver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