CVE-2026-30332
A Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability in Balena Etcher for Windows...
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.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- High
- Privileges needed
- Low
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
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.
- Record
CVE-2026-30332- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:H/AV:L/A:H/C:H/I:H/PR:L/S:C/UI:R - Weakness
- CWE-367
- Updated
- 2026-11-02
EUVDEUVD-2026-18350
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.
- Record
EUVD-2026-18350- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:H/AV:L/A:H/C:H/I:H/PR:L/S:C/UI:R - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-q22r-qqx4-x7hq
A Time-of-Check to Time-of-Use (TOCTOU) race condition vulnerability in Balena Etcher for Windows...
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.
- Record
GHSA-q22r-qqx4-x7hq- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-367
- Updated
- 2026-11-02
NVD
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.
- Record
CVE-2026-30332- CVSS 3.1
- 7.5 High
CVSS:3.1/AV:L/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:H - Weakness
- CWE-367
- Updated
- 2026-11-02
OSV
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.
- Record
CVE-2026-30332- CVSS 3.1
- 7.5 High
CVSS:3.1/AC:H/AV:L/A:H/C:H/I:H/PR:L/S:C/UI:R - Updated
- 2026-11-02
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | B1tBreaker/CVE-2026-30332 | 2026-04-01 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-30332 is a high vulnerability (CVSS 7.5), published April 2, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.18%, the 7th percentile. No source names a fixed version.