{"id":"UBUNTU-CVE-2026-63033","details":"A crafted IEC 60870-5-104 I-frame with a declared object count exceeding  what fits in the ASDU body causes InformationObject_ParseObjectAddress to read one byte past the end of the heap-allocated message buffer.","modified":"2026-08-06T03:10:24.001863412Z","published":"2026-07-30T23:16:00Z","upstream":["CVE-2026-63033"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-63033"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-63033"}],"affected":[{"package":{"name":"lib60870","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/lib60870?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.4-1","2.3.6-1","2.3.6-1.1"],"ecosystem_specific":{"binaries":[{"binary_version":"2.3.6-1.1","binary_name":"liblib60870-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-63033.json"}}],"schema_version":"1.8.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N"},{"type":"Ubuntu","score":"medium"}]}