CVE-2025-2783 Google Chromium Mojo: software flaw
In plain words: A mistake in the software that attackers have found a way to abuse. Depends on the product — see the description and the vendor advisory.
Confirmed exploited by CISA on · US federal patch deadline Apr 17, 2025
What to do
- Install Google's security update for Chromium Mojo. If no update exists, follow the vendor's workaround or stop using the product until one ships.
- Let the browser auto-update and relaunch it when it asks — the fix is not active until you do.
- Keep extensions to a minimum and remove ones you do not recognise.
- Stop using Internet Explorer and any browser that no longer gets updates.
Who is affected
Could reach you. This one is aimed at devices or apps of the kind people own.
What's at risk: A malicious or hacked website can be enough. Browser bugs are often the first step in a longer attack on the whole computer or phone.
The details
- Official name
- Google Chromium Mojo Sandbox Escape Vulnerability
- Product
- Google Chromium Mojo
- CISA description
- Google Chromium Mojo on Windows contains a sandbox escape vulnerability caused by a logic error, which results from an incorrect handle being provided in unspecified circumstances. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.
- Type of flaw
- Software flaw
- Confirmed exploited
- Mar 27, 2025
- US federal patch deadline
- Apr 17, 2025
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Answering about CVE-2025-2783 ·
Questions about CVE-2025-2783
Is CVE-2025-2783 being exploited?
Yes. CISA added CVE-2025-2783 to its Known Exploited Vulnerabilities catalog on Mar 27, 2025, which means there is reliable evidence of real-world attacks.
How do I fix CVE-2025-2783?
Install Google's security update for Chromium Mojo. If no update exists, follow the vendor's workaround or stop using the product until one ships. Let the browser auto-update and relaunch it when it asks — the fix is not active until you do.
Am I affected by CVE-2025-2783?
Only if you use Google Chromium Mojo. This one is aimed at devices or apps of the kind people own.