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TI-2021-09867 Aliases CVE-2021-28927GHSA-7585-2mwm-5jvf

The text-to-speech engine in libretro RetroArch for Windows 1.9.0 passes unsanitized…

Priority LOW 37CWE-78Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-78.

Summary

The text-to-speech engine in libretro RetroArch for Windows 1.9.0 passes unsanitized input to PowerShell through platform_win32.c via the accessibility_speak_windows function, which allows attackers who have write access on filesystems that are used by RetroArch to execute code via command injection using specially a crafted file and directory names.

Why it matters now

EPSS 0.01272 70th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:a:libretro:retroarch:*:*:*:*:*:*:*:*1.9.0 – 1.9.4Vulnerablelibretro
cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:*not specified by NVDRunning onMicrosoft
  • cpe:2.3:a:libretro:retroarch:*:*:*:*:*:*:*:* Versions 1.9.0 – 1.9.4 Vulnerable ·libretro
  • cpe:2.3:o:microsoft:windows:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·Microsoft

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2021-28927
  2. 2026-10-03 Alias added: GHSA-7585-2mwm-5jvf

References

  • TI-2025-08376 libretro RetroArch file_stream.c filestream_vscanf out-of-bounds CVSS 4.0MEDIUM 4.8

Sources