CVE-2026-116727
CVE-2026-116727
gbsplay through 0.0.103 contains a heap out-of-bounds read vulnerability in vgm_open() in gbs.c that walks the VGM command stream without bounds checks. Attackers can supply a crafted VGM file with wait opcodes and no 0x66 terminator to read past the heap buffer and crash the player.
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.
Weakness classification (CWE)
References
- github.com/mmitch/gbsplay/issues/201 (issue-tracking)
- github.com/mmitch/gbsplay (product)
- github.com/mmitch/gbsplay/commit/91b1f6df0abd3914f91caa528ec3213d731999e8 (patch)
- github.com/mmitch/gbsplay/blob/0.0.103/gbs.c (technical-description)
- hackmd.io/@haindpwn/gbsplay-rom-bank-index-oob-read (third-party-advisory)
- www.vulncheck.com/advisories/gbsplay-through-0.0.103-heap-out-of-bounds-read-vi… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-116727?
- CVE-2026-116727 is a low-severity vulnerability, classified under Out-of-bounds Read. CVSS score: 3.3/10. Published 2026-10-26.
- How severe is CVE-2026-116727?
- Low severity. CVSS v3 base score is 3.3 out of 10.