{"id":"DEBIAN-CVE-2026-63559","details":"An integer overflow in the UA_Variant arrayDimensions product  computation in open62541 may allow a remote attacker to read  out-of-bounds heap memory, potentially disclosing sensitive information.","modified":"2026-09-14T17:03:44.390052860Z","published":"2026-07-30T22:16:55.717Z","upstream":["CVE-2026-63559"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-63559"}],"affected":[{"package":{"name":"open62541","ecosystem":"Debian:13","purl":"pkg:deb/debian/open62541?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1","1.4.18-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63559.json"}},{"package":{"name":"open62541","ecosystem":"Debian:14","purl":"pkg:deb/debian/open62541?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.4.11.1-1","1.4.18-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-63559.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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"}]}