CVE-2026-86514: vgmstream txth-txtp txth.c sscanf stack-based overflow

Severity: medium (CVSS 6.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-09-08 · updated 2026-09-28
Weakness: CWE-119

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.

Affected products

vgmstream: r2117

References

https://github.com/vgmstream/vgmstream/
https://github.com/vgmstream/vgmstream/commit/4669d37a6af94866f6f0628678f9f90d46954e8b
https://github.com/vgmstream/vgmstream/issues/1972
https://github.com/vgmstream/vgmstream/pull/1956
https://vuldb.com/cve/CVE-2026-86514
https://vuldb.com/submit/908369
https://vuldb.com/vuln/399668
https://vuldb.com/vuln/399668/cti

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