CVE-2026-111150: libvgm affected git revisions

Affected technology

libvgm · 0 through a6eed945ecf4e5a25cf82004779c6f7e4fd5c319
ValleyBell

Description’s affected range: through commit a6eed945

Component: Not specified by the source

Attack conditions (Vendor/CNA, CVSS 4.0): Local · No privileges required · Passive user interaction

What an attacker can do

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. Vendor/CNA’s CVSS 4.0 assessment (base score 6.8/10) rates confidentiality and integrity impact as none; availability impact as high.