Vulnerability DatabaseCVE-2026-111150
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CVE-2026-111150
Published:October 15, 2026
Updated:October 20, 2026
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.
Related Resources (8)
https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L183-L190
https://github.com/ValleyBell/libvgm/blob/a6eed945ecf4e5a25cf82004779c6f7e4fd5c319/player/dblk_compr.c#L727-L751
https://github.com/ValleyBell/libvgm
https://hackmd.io/@haind-pwn/libvgm-pcm-compression-table-oob-read
https://github.com
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111150.json
https://www.vulncheck.com/advisories/valleybell-libvgm-through-commit-a6eed945-heap-out-of-bounds-read-via-decompressdatablk
https://nvd.nist.gov/vuln/detail/CVE-2026-111150
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CVSS v4
Base Score:
6.8
Attack Vector
LOCAL
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
PASSIVE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
5.5
Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Weakness Type (CWE)
Out-of-bounds Read
CWE-125
EPSS
Base Score:
0.13