Out-of-bounds Read in Vgmstream
CVE-2026-110660
vgmstream through r2117 contains a stack out-of-bounds read vulnerability in the G.722.1/Siren14 decoder in g7221_lib.c, whose bit reader refills without checking the data_u32 array end. Attackers can supply crafted .s14 or .sss files that drive decode_vector_quantized_mlt_indices() past the stack buffer during format detection, crashing the application.
Vulnerability class: Buffer Overflow
Published .
CVSS v3 metric
CVSS v3 base score 3.3 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
Weakness classification (CWE)
References
- hackmd.io/@haind-pwn/vgmstream-g7221-bitreader-oob-read (technical-description, exploit)
- github.com/vgmstream/vgmstream/blob/71e2361042531fe767fb98300cf8c1ee95e539a0/sr… (technical-description)
- github.com/vgmstream/vgmstream (product)
- www.vulncheck.com/advisories/vgmstream-through-r2117-stack-out-of-bounds-read-v… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-110660?
- CVE-2026-110660 is a low-severity vulnerability in Vgmstream, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2026-10-14.
- How severe is CVE-2026-110660?
- Low severity. CVSS v3 base score is 3.3 out of 10.