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…

High · published April 2, 2026

CVSS v3.1
7.5
EPSS
0%
Percentile
1.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.5 · HIGH
Vector
CVSS:3.1/AC:H/AV:L/A:H/C:H/I:H/PR:L/S:C/UI:R
CVSS v4.0
Not supplied
EPSS
0.00121 · 1.8th percentile
Published
2026-04-02T00:00Z
EPSS history
Timeline
  • 02 APR 00:00Z
    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…
    cvelistv5