# CVE-2025-2783: Google Chromium Mojo Sandbox Escape Vulnerability

Source: https://junglewise.ai/threats/cve-2025-2783-google-chromium-mojo-sandbox-escape-vulnerability  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2025-03-27. Updated: 2026-05-09  
License: CC BY 4.0 with a link back

CVE-2025-2783 · Severity: critical · CVSS 8.3 · Exploited in the wild · Published 2025-03-27

Google Chromium Mojo on Windows contains a sandbox escape vulnerability due to a logic error where an incorrect handle is provided under unspecified circumstances. A remote attacker can exploit this via a malicious file to escape the browser sandbox and execute code on the host system.

Vendors: [Google](https://junglewise.ai/threats/vendors/google).

## Quick answers

**Is CVE-2025-2783 exploited in the wild?** Yes. CVE-2025-2783 is known to be exploited in the wild, first recorded on 27 March 2025. Treat it as urgent.

**How severe is CVE-2025-2783?** Critical severity, with a CVSS score of 8.3, published 27 March 2025.

**Which products and versions are affected?** Google Chrome < 134.0.6998.177; Microsoft Edge; Opera Software Opera.

**Is there a fix for CVE-2025-2783?** A patch was published on 2025-03-26: Fixed in Chrome version 134.0.6998.177 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2025-2783 attacked?** It is attacked over the network, in a web application.

**Am I affected by CVE-2025-2783?** Check whether you run Google Chromium Mojo. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Affected products

- Google Chrome < 134.0.6998.177
- Microsoft Edge
- Opera Software Opera

## Timeline

- 2025-03-26: disclosed
- 2025-03-26: patched: Fixed in Chrome version 134.0.6998.177
- 2025-03-27: kev added: Added to CISA Known Exploited Vulnerabilities Catalog
- 2025-03-27: exploited

## Related threats

- [Google Chromium Mojo Insufficient Data Validation Vulnerability](https://junglewise.ai/threats/cve-2022-3075-google-chromium-mojo-insufficient-data-validation-vulnerability)