CVE-2021-28927

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.

CVSS v3.1

7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS v2.0

4.6 MEDIUMAV:L/AC:L/Au:N/C:P/I:P/A:P

EPSS

1.27% chance of exploitation in the next 30 days, 68th percentile

Published

2021-04-07

Updated

2026-07-09

Proof-of-concept exploits (1)

• https://labs.bishopfox.com/advisories/retroarch-for-windows-version-1.9.0

References

• CVE Record
• NVD entry

Related

• CVE-2021-28925
• CVE-2021-28935
• CVE-2021-28924
• CVE-2021-28936
• CVE-2021-28918
• CVE-2021-28937