{"id":"CVE-2026-111150","summary":"ValleyBell libvgm through commit a6eed945 Heap Out-of-Bounds Read via DecompressDataBlk","details":"ValleyBell libvgm through commit a6eed945 contains a heap out-of-bounds read vulnerability in the PCM data-block decompressor caused by an unbounded compression-table index. Attackers can supply a crafted .vgm file with a small type 0x7F table and wider compressed values, causing DecompressDataBlk to over-read heap memory and crash consumers.","modified":"2026-10-17T02:48:18.950389272Z","published":"2026-10-15T18:57:39.493Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-125"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111150.json"},"references":[{"type":"WEB","url":"https://github.com"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111150.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111150"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/valleybell-libvgm-through-commit-a6eed945-heap-out-of-bounds-read-via-decompressdatablk"},{"type":"PACKAGE","url":"https://github.com/ValleyBell/libvgm"},{"type":"ARTICLE","url":"https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L183-L190"},{"type":"ARTICLE","url":"https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L727-L751"},{"type":"EVIDENCE","url":"https://hackmd.io/@haind-pwn/libvgm-pcm-compression-table-oob-read"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/ValleyBell/libvgm","events":[{"introduced":"0"},{"last_affected":"a6eed945ecf4e5a25cf82004779c6f7e4fd5c319"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111150.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}