CVE-2026-86514

vgmstream txth-txtp txth.c sscanf stack-based overflow

State: Published
Severity: 5.3 Medium
Published: Sep 8, 2026
Updated: Sep 11, 2026
Reserved: Sep 7, 2026

Description

A weakness has been identified in vgmstream up to r2117. This issue affects the function sscanf of the file src/meta/txth.c of the component txth-txtp. This manipulation causes stack-based buffer overflow. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. Patch name: 4669d37a6af94866f6f0628678f9f90d46954e8b. To fix this issue, it is recommended to deploy a patch.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C	VulDB

Weaknesses

CWE-121 Stack-based Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
vgmstreamn/a	r2117Affected

References

VDB-399668 | vgmstream txth-txtp txth.c sscanf stack-based overflowvdb-entrytechnical-description
VDB-399668 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-86514 | CVE Analysis and Reportthird-party-advisory
Submit #908369 | vgmstream r2117 Stack-based Buffer Overflowthird-party-advisory
https://github.com/vgmstream/vgmstream/issues/1972exploitissue-tracking
https://github.com/vgmstream/vgmstream/pull/1956issue-trackingpatch
https://github.com/vgmstream/vgmstream/commit/4669d37a6af94866f6f0628678f9f90d46954e8bpatch
https://github.com/vgmstream/vgmstream/product

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