Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow. Most apps will crash and some may perform incorrect buffer allocations in the Node.js Buffer API resulting in unexpected truncation or allocation. This vulnerability is fixed in 42.3.3.
Metrics
Affected Vendors & Products
References
History
Tue, 23 Jun 2026 20:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Electron
Electron electron |
|
| Vendors & Products |
Electron
Electron electron |
Tue, 23 Jun 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
Tue, 23 Jun 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From 42.3.1 until 42.3.3, Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow. Most apps will crash and some may perform incorrect buffer allocations in the Node.js Buffer API resulting in unexpected truncation or allocation. This vulnerability is fixed in 42.3.3. | |
| Title | Electron: Buffer performs incorrect byte length calculations resulting in heap buffer under/overflow | |
| Weaknesses | CWE-120 | |
| References |
| |
| Metrics |
cvssV4_0
|
Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-06-23T17:47:47.594Z
Reserved: 2026-06-12T17:13:32.278Z
Link: CVE-2026-54257
Updated: 2026-06-23T17:47:41.615Z
No data.
No data.
OpenCVE Enrichment
Updated: 2026-06-23T20:00:07Z