What is CVE-2021-28927?

CVE-2021-28927 is a high-severity vulnerability in Libretro Retroarch, classified under OS Command Injection. CVSS score: 7.8/10. Published 2021-04-07.

How severe is CVE-2021-28927?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Libretro Retroarch

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.

Vulnerability class: Command Injection (OS Command Injection)

EPSS: 0.013 (66.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

af854a3a-2127-422b-91ae-364da2661108 (Exploit, x_refsource_MISC, Vendor Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Product, x_refsource_MISC, Vendor Advisory)
cve@mitre.org (Patch, Third Party Advisory, x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC)

Frequently asked questions

What is CVE-2021-28927?: CVE-2021-28927 is a high-severity vulnerability in Libretro Retroarch, classified under OS Command Injection. CVSS score: 7.8/10. Published 2021-04-07.
How severe is CVE-2021-28927?: High severity. CVSS v3 base score is 7.8 out of 10.