{"action":"Upgrade linux to 6.5.6-1 or later.","affected":[{"fixed":"6.5.6-1","introduced":"0"}],"component":"linux","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:13","exploited":false,"fixed_versions":["6.5.6-1"],"id":"tcs_01M5NJSGG8VWDPFDCAV1AAT8GJ","modified_at":"2026-10-23T18:05:27.234092226Z","published_at":"2025-10-07T16:15:50.043Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-53663","https://security-tracker.debian.org/tracker/CVE-2023-53663"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-53663#Debian:13/linux","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-53663"}],"summary":"In the Linux kernel, the following vulnerability has been resolved: KVM: nSVM: Check instead of asserting on nested TSC scaling support Check for nested TSC scaling support on nested SVM VMRUN instead"}