{"action":"Upgrade linux to 6.12.16-1 or later.","affected":[{"fixed":"6.12.16-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["6.12.16-1"],"id":"tcs_01M5NN1RJR4XS7NQ04FFFN3X4F","modified_at":"2026-10-15T09:47:31.789225768Z","published_at":"2025-02-27T03:15:18.690Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2025-21779","https://security-tracker.debian.org/tracker/CVE-2025-21779"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2025-21779#Debian:14/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2025-21779"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel Advertise support for Hyper-V's SEND_IPI and SEND_IPI_E"}