CVE-2026-116727

gbsplay through 0.0.103 Heap Out-of-Bounds Read via vgm_open in gbs.c

4.8 Medium

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.

Attack profile

How easy it is to exploit

Attack vector: Local
Complexity: Low
Privileges needed: None
User interaction: Passive

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

0.13%Unchanged since Oct 27, 2026

What each source reports

CVE List Score used 4.8

gbsplay through 0.0.103 Heap Out-of-Bounds Read via vgm_open in gbs.c

Record: CVE-2026-116727
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1: 3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness: CWE-125
Updated: 2026-11-05

EUVDEUVD-2026-110475 4.8

Record: EUVD-2026-110475
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Updated: 2026-11-05

GitHub AdvisoriesGHSA-f826-v6gp-c5xh 4.8

gbsplay through 0.0.103 contains a heap out-of-bounds read vulnerability in vgm_open() in gbs.c...

Record: GHSA-f826-v6gp-c5xh
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness: CWE-125
Updated: 2026-11-02

NVD 4.8

Record: CVE-2026-116727
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1: 3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness: CWE-125
Updated: 2026-11-05

OSV 4.8

gbsplay through 0.0.103 Heap Out-of-Bounds Read via vgm_open in gbs.c

Record: CVE-2026-116727
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
Weakness: CWE-125
Updated: 2026-11-07

OSVUBUNTU-CVE-2026-116727 4.8

Record: UBUNTU-CVE-2026-116727
CVSS 4.0: 4.8 MediumCVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N
CVSS 3.1: 3.3 LowCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Updated: 2026-11-02

Affected products

mmitch gbsplay

Affected packages

Affected packages
Package	Affected	Fixed
`gbsplay` Ubuntu:16.04:LTS	All versions, plus listed versions 0.0.91-10.0.93-1	None known
`gbsplay` Ubuntu:18.04:LTS	All versions, plus listed versions 0.0.93-2	None known
`gbsplay` Ubuntu:20.04:LTS	All versions, plus listed versions 0.0.93-3	None known
`gbsplay` Ubuntu:22.04:LTS	All versions, plus listed versions 0.0.94-20.0.94+git20210915-1	None known
`gbsplay` Ubuntu:24.04:LTS	All versions, plus listed versions 0.0.94+git20210915-10.0.96-10.0.96-1build10.0.96-1build20.0.96-1build3	None known
`gbsplay` Ubuntu:26.10	All versions, plus listed versions 0.0.102-10.0.102-2	None known
`gbsplay` Ubuntu:26.04:LTS	All versions, plus listed versions 0.0.99-10.0.99-20.0.102-1	None known

History

History
Recorded	Changed	Sources
Nov 5, 2026	facts, references	CVE List
Nov 2, 2026	first indexed	CVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-116727 is a medium vulnerability (CVSS 4.8) in Mmitch Gbsplay, published October 26, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.13%, the 2nd percentile. No source names a fixed version.

References

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