CVE-2026-111150

ValleyBell libvgm through commit a6eed945 Heap Out-of-Bounds Read via DecompressDataBlk

Published Oct 15, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Valleybell
Valleybell libvgm
Vendors & Products Valleybell
Valleybell libvgm
Type Values Removed Values Added
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.
Title ValleyBell libvgm through commit a6eed945 Heap Out-of-Bounds Read via DecompressDataBlk
Weaknesses CWE-125
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H'}

cvssV4_0

{'score': 6.8, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Oct 21, 2026, 1:22 AM
Reserved
Oct 15, 2026, 5:03 PM
Status
Deferred
Published
Oct 15, 2026, 7:17 PM
Modified
Oct 21, 2026, 2:17 AM