{"id":"OESA-2026-4676","summary":"mtools security update","details":"Mtools is a collection of utilities to access MS-DOS disks from GNU and Unix without mounting them. It supports Win'95 style long file names, OS/2 Xdf disks and 2m disks (store up to 1992k on a high density 3 1/2 disk) In addition to file access, it supports many FAT-specific features: volume labels, FAT-specific file attributes (hidden, system, ...), "bad block" map maintenance, access to remote floppy drives, Iomega ZIP disk protection, "secure" erase, display of file's on-disk layout, etc\r\n\r\nSecurity Fix(es):\n\nGNU mtools before 4.0.50 has an out-of-bounds write in parse_vses in vfat.c.(CVE-2026-118384)","modified":"2026-11-04T14:00:04.827674249Z","published":"2026-11-04T13:54:23Z","upstream":["CVE-2026-118384"],"database_specific":{"severity":"Medium"},"references":[{"type":"ADVISORY","url":"https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2026-4676"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118384"}],"affected":[{"package":{"name":"mtools","ecosystem":"openEuler:22.03-LTS-SP4","purl":"pkg:rpm/openEuler/mtools&distro=openEuler-22.03-LTS-SP4"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.0.35-3.oe2203sp4"}]}],"ecosystem_specific":{"aarch64":["mtools-4.0.35-3.oe2203sp4.aarch64.rpm","mtools-debuginfo-4.0.35-3.oe2203sp4.aarch64.rpm","mtools-debugsource-4.0.35-3.oe2203sp4.aarch64.rpm","mtools-help-4.0.35-3.oe2203sp4.aarch64.rpm"],"src":["mtools-4.0.35-3.oe2203sp4.src.rpm"],"x86_64":["mtools-4.0.35-3.oe2203sp4.x86_64.rpm","mtools-debuginfo-4.0.35-3.oe2203sp4.x86_64.rpm","mtools-debugsource-4.0.35-3.oe2203sp4.x86_64.rpm","mtools-help-4.0.35-3.oe2203sp4.x86_64.rpm"]},"database_specific":{"source":"https://repo.openeuler.org/security/data/osv/OESA-2026-4676.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H"}]}