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Fencer Vulns
high 8.4

CVE-2024-28886 json

OS command injection vulnerability exists in UTAU versions prior to v0.4.19.

published 2024-05-28 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-34432

cvss
8.4
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.7%
EPSS 0.7% chance of exploitation in 30 days, percentile 51%
public exploits
0
none known

Summary

OS command injection vulnerability exists in UTAU versions prior to v0.4.19. If a user of the product opens a crafted UTAU project file (.ust file), an arbitrary OS command may be executed.

Patch / fix

  • ameya_ayame utau 0.4.19

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
2 y ago

Exploit prediction

0.66% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 8.4 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

  • ameya/ayame UTAU
  • ameya_ayame utau

Classification

Weakness
  • CWE-94 Improper Control of Generation of Code

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.