CVE-2026-30332

HIGH

7.5

Description

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.

CVE Details

CVSS v3.1 Score7.5

SeverityHIGH

CVSS VectorCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H

Attack VectorLOCAL

ComplexityHIGH

Privileges RequiredLOW

User InteractionREQUIRED

Published4/2/2026

Last Modified4/3/2026

Sourcenvd

Honeypot Sightings0

Weaknesses (CWE)

CWE-367

References

https://github.com/B1tBreaker/CVE-2026-30332(cve@mitre.org)

https://github.com/balena-io/etcher/issues/4500(cve@mitre.org)

https://www.balena.io/security(cve@mitre.org)

IOC Correlations

No correlations recorded

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