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...
- Published
- Apr 2, 2026
- Updated
- Apr 2, 2026
- Assigning CNA
- mitre
- Evidence observed
- Aug 25, 2026
Primary CVSS
nvd · CVSS 3.1
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:HLow · next 30 days
- Percentile
- 6.6%
- Model date
- Sep 21, 2026
EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.
Summary
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.
Sources
1- CVE-2026-30332Exploit
Balena Etcher versions prior to v2.1.4 on Windows are affected by a Time-of-Check to Time-of-Use (TOCTOU) race condition in the temporary file handling.
Responsible use
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