{"id":"UBUNTU-CVE-2026-63035","details":"A heap use-after-free vulnerability in the TransferSubscriptions service  in open62541 may allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code.","modified":"2026-08-06T03:10:24.161400380Z","published":"2026-07-30T23:16:00Z","upstream":["CVE-2026-63035"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63035"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-63035"}],"affected":[{"package":{"name":"open62541","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/open62541?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1","1.4.11.1-1build1"],"ecosystem_specific":{"binaries":[{"binary_name":"libopen62541-1.4","binary_version":"1.4.11.1-1build1"},{"binary_name":"libopen62541-1.4-tools","binary_version":"1.4.11.1-1build1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63035.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:H/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}