{"action":"Upgrade shim to 15.8-1~deb12u1 or later.","affected":[{"fixed":"15.8-1~deb12u1","introduced":"0"}],"component":"shim","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:12","exploited":false,"fixed_versions":["15.8-1~deb12u1"],"id":"tcs_01M5NJ89ATBH5493JXX7E06XGE","modified_at":"2026-10-26T18:02:31.603869039Z","published_at":"2024-01-29T17:15:08.773Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2023-40550","https://security-tracker.debian.org/tracker/CVE-2023-40550"],"severity":{"label":"medium","score":5.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2023-40550","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2023-40550"}],"summary":"An out-of-bounds read flaw was found in Shim when it tried to validate the SBAT information. This issue may expose sensitive data during the system's boot phase."}