{"id":"CVE-2026-111150","revision":"6b9c300b15014eefa54c7a0fb8c13e09","records":[{"revision":"6b9c300b15014eefa54c7a0fb8c13e09","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-111150","aliases":[],"title":"ValleyBell libvgm through commit a6eed945 Heap Out-of-Bounds Read via DecompressDataBlk","description":"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.","state":0,"publishedAt":"2026-10-15T18:57:39.493+00:00","modifiedAt":"2026-10-21T01:22:43.222+00:00","affected":[{"ecosystem":"https://github.com","name":"libvgm","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"ValleyBell\",\n                    \"product\": \"libvgm\",\n                    \"defaultStatus\": \"unaffected\",\n                    \"versions\": [\n                        {\n                            \"version\": \"0\",\n                            \"lessThanOrEqual\": \"a6eed945ecf4e5a25cf82004779c6f7e4fd5c319\",\n                            \"status\": \"affected\",\n                            \"versionType\": \"git\"\n                        }\n                    ],\n                    \"collectionURL\": \"https://github.com\",\n                    \"repo\": \"https://github.com/ValleyBell/libvgm\"\n                }"}],"metrics":[{"system":"CVSS 4.0","vector":"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","score":6.8,"severity":"MEDIUM"},{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","score":5.5,"severity":"MEDIUM"}],"references":["https://hackmd.io/@haind-pwn/libvgm-pcm-compression-table-oob-read","https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L727-L751","https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L183-L190","https://github.com/ValleyBell/libvgm","https://www.vulncheck.com/advisories/valleybell-libvgm-through-commit-a6eed945-heap-out-of-bounds-read-via-decompressdatablk"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-111150","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-111150","identifiers":["CVE-2026-111150"]},"retained":false,"historicalAffected":[]}],"coverage":[]}