---
id: CVE-2026-86514
title: A weakness has been identified in vgmstream up to r2117
summary: >-
  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 ca…
severity: medium
cvss: 6.3
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L'
cwe:
  - CWE-119
  - CWE-121
product: vgmstream
affected:
  - vgmstream r2117
published: '2026-09-08'
updated: '2026-09-11'
sourceUpdated: '2026-09-11T21:17:46.627'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-86514'
references:
  - url: 'https://github.com/vgmstream/vgmstream/'
    label: cna@vuldb.com
  - url: >-
      https://github.com/vgmstream/vgmstream/commit/4669d37a6af94866f6f0628678f9f90d46954e8b
    label: cna@vuldb.com
  - url: 'https://github.com/vgmstream/vgmstream/issues/1972'
    label: cna@vuldb.com
  - url: 'https://github.com/vgmstream/vgmstream/pull/1956'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/cve/CVE-2026-86514'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/submit/908369'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399668'
    label: cna@vuldb.com
  - url: 'https://vuldb.com/vuln/399668/cti'
    label: cna@vuldb.com
tags:
  - nvd
  - cve.org
  - exploit-available
exploitAvailable: true
ssvc:
  exploitation: poc
  automatable: 'yes'
  technicalImpact: partial
  timestamp: '2026-09-11T20:02:51.471381Z'
epss: 0.00468
epssPercentile: 0.37855
ingestedAt: '2026-09-08T15:33:26.982Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.