{"id":"UBUNTU-CVE-2026-10275","details":"A flaw has been found in OpenSC up to 0.26.1. This affects the function test_kpgen_certwrite of the file src/tools/pkcs11-tool.c of the component pkcs11-tool Key Generation Module. This manipulation causes buffer overflow. The attack is possible to be carried out remotely. The complexity of an attack is rather high. It is indicated that the exploitability is difficult. The exploit has been published and may be used. Patch name: 814f745b3b6d100295f65f1935edd33d520d33ab. It is recommended to apply a patch to fix this issue.","modified":"2026-06-03T11:20:11Z","published":"2026-06-01T17:16:00Z","upstream":["CVE-2026-10275"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-10275"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-10275"},{"type":"REPORT","url":"https://github.com/OpenSC/OpenSC/issues/3682"},{"type":"REPORT","url":"https://github.com/OpenSC/OpenSC/pull/3684"},{"type":"REPORT","url":"https://github.com/OpenSC/OpenSC/commit/814f745b3b6d100295f65f1935edd33d520d33ab"},{"type":"REPORT","url":"https://github.com/OpenSC/OpenSC/"},{"type":"REPORT","url":"https://pan.baidu.com/s/1nrZPKDz2eAcCpsaFiIRlrg"},{"type":"REPORT","url":"https://vuldb.com/cve/CVE-2026-10275"},{"type":"REPORT","url":"https://vuldb.com/submit/825403"},{"type":"REPORT","url":"https://vuldb.com/vuln/367568"},{"type":"REPORT","url":"https://vuldb.com/vuln/367568/cti"}],"affected":[{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:16.04:LTS","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=esm-apps%2Fxenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.15.0-1ubuntu1","0.15.0-1ubuntu1+esm1","0.15.0-1ubuntu1+esm2","0.15.0-1ubuntu1+esm3"],"ecosystem_specific":{"binaries":[{"binary_name":"opensc","binary_version":"0.15.0-1ubuntu1+esm3"},{"binary_version":"0.15.0-1ubuntu1+esm3","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10275.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:18.04:LTS","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=esm-apps%2Fbionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.17.0-1","0.17.0-2","0.17.0-2build1","0.17.0-3","0.17.0-3ubuntu0.1~esm1","0.17.0-3ubuntu0.1~esm2","0.17.0-3ubuntu0.1~esm3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.17.0-3ubuntu0.1~esm3","binary_name":"opensc"},{"binary_name":"opensc-pkcs11","binary_version":"0.17.0-3ubuntu0.1~esm3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10275.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:20.04:LTS","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=esm-apps%2Ffocal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.19.0-2","0.20.0-1","0.20.0-2","0.20.0-3","0.20.0-3ubuntu0.1~esm1","0.20.0-3ubuntu0.1~esm2","0.20.0-3ubuntu0.1~esm3","0.20.0-3ubuntu0.1~esm4"],"ecosystem_specific":{"binaries":[{"binary_version":"0.20.0-3ubuntu0.1~esm4","binary_name":"opensc"},{"binary_name":"opensc-pkcs11","binary_version":"0.20.0-3ubuntu0.1~esm4"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10275.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:22.04:LTS","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=esm-apps%2Fjammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.21.0-1ubuntu1","0.22.0-1ubuntu2","0.22.0-1ubuntu2+esm1","0.22.0-1ubuntu2.1","0.22.0-1ubuntu2.1+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"opensc","binary_version":"0.22.0-1ubuntu2.1+esm1"},{"binary_version":"0.22.0-1ubuntu2.1+esm1","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10275.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:Pro:24.04:LTS","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=esm-apps%2Fnoble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.23.0-1ubuntu4","0.24.0~rc1-1","0.25.0~rc1-1","0.25.0~rc1-1build1","0.25.0~rc1-1build2","0.25.0~rc1-1ubuntu0.1~esm1","0.25.0~rc1-1ubuntu0.1","0.25.0~rc1-1ubuntu0.2","0.25.0~rc1-1ubuntu0.2+esm1"],"ecosystem_specific":{"binaries":[{"binary_name":"opensc","binary_version":"0.25.0~rc1-1ubuntu0.2+esm1"},{"binary_version":"0.25.0~rc1-1ubuntu0.2+esm1","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10275.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.26.1-1","0.26.1-2","0.26.1-3"],"ecosystem_specific":{"binaries":[{"binary_version":"0.26.1-3","binary_name":"opensc"},{"binary_version":"0.26.1-3","binary_name":"opensc-pkcs11"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-10275.json"}},{"package":{"name":"opensc","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/opensc?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.26.1-3","0.26.1-3ubuntu1","0.27.0~rc1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"opensc","binary_version":"0.27.0~rc1-1"},{"bin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