CVE-2026-30332

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-30332
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-04-02 16:16:22 UTC
Updated2026-04-03 16:10:23 UTC
DescriptionA 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.

Risk And Classification

Primary CVSS: v3.1 7.5 HIGH from [email protected]

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

EPSS: 0.000110000 probability, percentile 0.012900000 (date 2026-04-07)

Problem Types: CWE-367 | n/a | CWE-367 CWE-367 Time-of-check Time-of-use (TOCTOU) Race Condition

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary7.5HIGHCVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED7.5HIGHCVSS:3.1/AC:H/AV:L/A:H/C:H/I:H/PR:L/S:C/UI:R

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
High
Privileges Required
Low
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
www.balena.io/security [email protected] www.balena.io
github.com/balena-io/etcher/issues/4500 [email protected] github.com
github.com/B1tBreaker/CVE-2026-30332 [email protected] github.com
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