{"id":"SUSE-SU-2026:21621-1","summary":"Security update for grub2","details":"This update for grub2 fixes the following issues\n\n- CVE-2025-54770: Missing unregister call for net_set_vlan command may lead to use-after-free (bsc#1252930).\n- CVE-2025-54771: grub_file_close() does not properly controls the fs refcount (bsc#1252931).\n- CVE-2025-61661: Out-of-bounds write in grub_usb_get_string() function (bsc#1252932).\n- CVE-2025-61662: Missing unregister call for gettext command may lead to use-after-free (bsc#1252933).\n- CVE-2025-61663: Missing unregister call for normal commands may lead to use-after-free (bsc#1252934).\n- CVE-2025-61664: Missing unregister call for normal_exit command may lead to use-after-free (bsc#1252935).\n\nChanges for grub2:\n\n- Bump upstream SBAT generation to 6\n","modified":"2026-05-16T18:24:43.104815038Z","published":"2026-05-11T08:48:36Z","related":["CVE-2025-54770","CVE-2025-54771","CVE-2025-61661","CVE-2025-61662","CVE-2025-61663","CVE-2025-61664"],"upstream":["CVE-2025-54770","CVE-2025-54771","CVE-2025-61661","CVE-2025-61662","CVE-2025-61663","CVE-2025-61664"],"references":[{"type":"ADVISORY","url":"https://www.suse.com/support/update/announcement/2026/suse-su-202621621-1/"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252930"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252931"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252932"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252933"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252934"},{"type":"REPORT","url":"https://bugzilla.suse.com/1252935"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-54770"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-54771"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-61661"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-61662"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-61663"},{"type":"WEB","url":"https://www.suse.com/security/cve/CVE-2025-61664"}],"schema_version":"1.7.5"}