Review reviewHigh

CVE-2026-34770

electron

Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. Prior to versions 38.8.6, 39.8.1, 40.8.0, and 41.0.0-beta.8, apps that use the powerMonitor module may be vulnerable to a use-after-free. After the native PowerMonitor object is garbage-collected, the associated OS-level resources (a message window on Windows, a shutdown handler on macOS) retain dangling references. A subsequent session-change event (Windows) or system shutdown (macOS) dereferences freed memory, which may lead to a crash or memory corruption. All apps that access powerMon...

CVSS: 8.8
EPSS: 0.24%
CISA KEV: Not listed
Published: 2026.04.04

PRIORITY ASSESSMENT

Review review

The CVSS severity warrants an early asset and exposure review.

Known exploitationNot established by KEV

Exploit probability0.24%

Technical severityCVSS 8.8

Vulnerability overview

Affected product and versions

Product: electron
Affected versions: >= < 38.8.6, >= >= 39.0.0-alpha.1, < 39.8.1, >= >= 40.0.0-alpha.1, < 40.8.0, >= >= 41.0.0-alpha.1, < 41.0.0-beta.8, < 38.8.6, >= 39.0.0 < 39.8.1, >= 40.0.0 < 40.8.0, 41.0.0
Fixed versions: 38.8.6, 39.8.1, 40.8.0

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide

1
Identify
Confirm that electron and an affected version are present.
2
Prioritize
Combine exploitation signals with asset exposure and business criticality.
3
Remediate
Follow the vendor advisory or supported update path and preserve rollback options.
4
Verify
Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CWE: CWE-416