{"id":"DEBIAN-CVE-2026-0665","details":"An off-by-one error was found in QEMU's KVM Xen guest support. A malicious guest could use this flaw to trigger out-of-bounds heap accesses in the QEMU process via the emulated Xen physdev hypercall interface, leading to a denial of service or potential memory corruption.","modified":"2026-09-14T17:00:14.629854956Z","published":"2026-02-18T21:16:22.633Z","upstream":["CVE-2026-0665"],"references":[{"type":"ADVISORY","url":"https://security-tracker.debian.org/tracker/CVE-2026-0665"}],"affected":[{"package":{"name":"qemu","ecosystem":"Debian:13","purl":"pkg:deb/debian/qemu?arch=source&distro=trixie"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.0.8+ds-0+deb13u1"}]}],"versions":["1:10.0.2+ds-2","1:10.0.2+ds-2+deb13u1","1:10.0.2+ds-2+deb13u1~bpo12+1","1:10.0.3+ds-0+deb13u1","1:10.0.3+ds-1","1:10.0.3+ds-2","1:10.0.3+ds-3","1:10.0.3+ds-4","1:10.0.6+ds-0+deb13u1","1:10.0.6+ds-0+deb13u2","1:10.0.7+ds-0+deb13u1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0665.json"}},{"package":{"name":"qemu","ecosystem":"Debian:14","purl":"pkg:deb/debian/qemu?arch=source&distro=forky"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1:10.2.0+ds-2"}]}],"versions":["1:10.0.2+ds-2","1:10.0.3+ds-1","1:10.0.3+ds-2","1:10.0.3+ds-3","1:10.0.3+ds-4","1:10.1.0+ds-1","1:10.1.0+ds-2","1:10.1.0+ds-3","1:10.1.0+ds-4","1:10.1.0+ds-5","1:10.1.0~rc0+ds-1","1:10.1.0~rc0+ds-2","1:10.1.0~rc0+ds-3","1:10.1.0~rc0+ds-4","1:10.1.0~rc1+ds-1","1:10.1.0~rc1+ds-1a","1:10.1.0~rc1+ds-1b","1:10.1.0~rc1+ds-2","1:10.1.0~rc1+ds-3","1:10.1.0~rc2+ds-1","1:10.1.0~rc3+ds-1","1:10.1.0~rc3+ds-2","1:10.1.1+ds-1","1:10.1.2+ds-1","1:10.1.2+ds-2","1:10.1.2+ds-3","1:10.1.3+ds-1","1:10.2.0+ds-1","1:10.2.0~rc1+ds-1"],"ecosystem_specific":{"urgency":"not yet assigned"},"database_specific":{"source":"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-0665.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H"}]}