Electron is a framework for writing cross-platform desktop applications using JavaScript, HTML and CSS. From versions 39.0.0-alpha.1 to before 39.8.0, 40.0.0-alpha.1 to before 40.7.0, and 41.0.0-alpha.1 to before 41.0.0-beta.8, apps that pass VideoFrame objects (from the WebCodecs API) across the contextBridge are vulnerable to a context isolation bypass. An attacker who can execute JavaScript in the main world (for example, via XSS) can use a bridged VideoFrame to gain access to the isolated world, including any Node.js APIs exposed to the preload script. Apps are only affected if a preload script returns, resolves, or passes a VideoFrame object to the main world via contextBridge.exposeInMainWorld(). Apps that do not bridge VideoFrame objects are not affected. This issue has been patched in versions 39.8.0, 40.7.0, and 41.0.0-beta.8.
| Software | From | Fixed in |
|---|---|---|
electron
|
39.0.0-alpha.1 | 39.8.0 |
electron
|
40.0.0-alpha.1 | 40.7.0 |
electron
|
41.0.0-alpha.1 | 41.0.0-beta.8 |
| electronjs / electron | 39.0.0 | 39.8.0 |
| electronjs / electron | 40.0.0 | 40.7.0 |
| electronjs / electron | 41.0.0-alpha1 | 41.0.0-alpha1.x |
| electronjs / electron | 41.0.0-alpha2 | 41.0.0-alpha2.x |
| electronjs / electron | 41.0.0-alpha3 | 41.0.0-alpha3.x |
| electronjs / electron | 41.0.0-alpha4 | 41.0.0-alpha4.x |
| electronjs / electron | 41.0.0-alpha5 | 41.0.0-alpha5.x |
| electronjs / electron | 41.0.0-alpha6 | 41.0.0-alpha6.x |
| electronjs / electron | 41.0.0-beta1 | 41.0.0-beta1.x |
| electronjs / electron | 41.0.0-beta2 | 41.0.0-beta2.x |
| electronjs / electron | 41.0.0-beta3 | 41.0.0-beta3.x |
| electronjs / electron | 41.0.0-beta4 | 41.0.0-beta4.x |
| electronjs / electron | 41.0.0-beta5 | 41.0.0-beta5.x |
| electronjs / electron | 41.0.0-beta6 | 41.0.0-beta6.x |
| electronjs / electron | 41.0.0-beta7 | 41.0.0-beta7.x |
A security vulnerability is a weakness in software, hardware, or configuration that can be exploited to compromise confidentiality, integrity, or availability. Many vulnerabilities are tracked as CVEs (Common Vulnerabilities and Exposures), which provide a standardized identifier so teams can coordinate patching, mitigation, and risk assessment across tools and vendors.
CVSS (Common Vulnerability Scoring System) estimates technical severity, but it doesn't automatically equal business risk. Prioritize using context like internet exposure, affected asset criticality, known exploitation (proof-of-concept or in-the-wild), and whether compensating controls exist. A "Medium" CVSS on an exposed, production system can be more urgent than a "Critical" on an isolated, non-production host.
A vulnerability is the underlying weakness. An exploit is the method or code used to take advantage of it. A zero-day is a vulnerability that is unknown to the vendor or has no publicly available fix when attackers begin using it. In practice, risk increases sharply when exploitation becomes reliable or widespread.
Recurring findings usually come from incomplete Asset Discovery, inconsistent patch management, inherited images, and configuration drift. In modern environments, you also need to watch the software supply chain: dependencies, containers, build pipelines, and third-party services can reintroduce the same weakness even after you patch a single host. Unknown or unmanaged assets (often called Shadow IT) are a common reason the same issues resurface.
Use a simple, repeatable triage model: focus first on externally exposed assets, high-value systems (identity, VPN, email, production), vulnerabilities with known exploits, and issues that enable remote code execution or privilege escalation. Then enforce patch SLAs and track progress using consistent metrics so remediation is steady, not reactive.
SynScan combines attack surface monitoring and continuous security auditing to keep your inventory current, flag high-impact vulnerabilities early, and help you turn raw findings into a practical remediation plan.