{"action":"Upgrade xen to 4.20.2+37-g61ff35323e-0+deb13u1 or later.","affected":[{"fixed":"4.20.2+37-g61ff35323e-0+deb13u1","introduced":"0"}],"component":"xen","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["4.20.2+37-g61ff35323e-0+deb13u1"],"id":"tcs_01M5NP2Z1RZM66DKPKJ1M9P9FR","modified_at":"2026-10-04T22:00:06.671055322Z","published_at":"2026-01-28T16:16:12.880Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-58150","https://security-tracker.debian.org/tracker/CVE-2025-58150"],"severity":{"label":"high","score":8.8},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-58150#Debian:13/xen","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-58150"}],"summary":"Shadow mode tracing code uses a set of per-CPU variables to avoid cumbersome parameter passing. Some of these variables are written to with guest controlled data, of guest controllable size. That size"}