CVE-2026-30332

A Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability in Balena Etcher for Windows prior to v2.1.4 allows attackers to escalate privileges and execute arbitrary code via replacing a legitimate script with a crafted payload during the flashing process.

CVSS v3.1

7.5 HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

EPSS

0.17% chance of exploitation in the next 30 days, 6th percentile

Published

2026-04-02

Proof-of-concept exploits (1)

• B1tBreaker/CVE-2026-303320★ · 2026-04-02

References

• CVE Record
• NVD entry

Related

• CVE-2025-48708
• CVE-2026-3028
• CVE-2026-30345
• CVE-2026-3027
• CVE-2026-3035
• CVE-2026-3026