DaystoPatch

GoogleExploited incident

Google Chromium Mojo Sandbox Escape Vulnerability

CVE-2025-2783High, CVSS 8.3In CISA's Known Exploited Vulnerabilities catalog since 27 Mar 2025

Automated timeline. Not yet checked by a researcher, so it doesn't count toward any grade.

FixedFixed for every supported version on the day it became public.

Response

Silence
0h
First public report to first vendor statement
Exposure
0h
First public report to first fixUnverified source
Follow-through
0h
First public report to a fix for every supported versionUnverified source
  • Vendor silent
  • Vendor statement, no fix
  • Fixed for some versions
  • Fixed when disclosed
  • Date only, no time of day

Timeline and evidence

Open a moment to see its source and archived quote.

  1. First public report

    Google advisory chrome-6183811296501840105/CVE-2025-2783ClaimedQuote verified

    The Stable channel has been updated to 134.0.6998.177 /.178 for Windows which will roll out over the coming days/weeks. A full list of changes in this build is available in the Log . Extended stable

    The vendor's own disclosure.

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    5 more sources for this moment
    Bluesky postClaimedQuote not checked yet25 Mar 2025, 22:00 UTC

    new Google Chrome 0-day that is being used in targeted attacks to deliver sophisticated spyware 🔥🔥🔥. It was just fixed as CVE-2025-2783 and we are revealing the first details about it and “Operation ForumTroll” securelist.com/operation-fo...

    Earliest third-party post we hold.

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    Bluesky post social
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    Mastodon postClaimedQuote not checked yet26 Mar 2025, 06:52 UTC

    Google Chrome Vulnerability CVE-2025-2783: A Closer Look https:// thedefendopsdiaries.com/google -chrome-vulnerability-cve-2025-2783-a-closer-look/ # googlechrome # cve20252783 # cybersecurity # zeroday

    Earliest third-party post we hold.

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    Mastodon post social
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    CVE.org record CVE-2025-2783ClaimedQuote verified26 Mar 2025, 16:07 UTC

    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.

    CVE record published.

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    CISA KEV (CVE-2025-2783)ClaimedQuote verified27 Mar 2025

    Google Chromium Mojo Sandbox Escape Vulnerability

    Added to CISA's KEV catalog on 2025-03-27.

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    Hacker NewsClaimedQuote not checked yet6 Apr 2025, 19:39 UTC

    https://bugzilla.mozilla.org/show_bug.cgi?id=1956398 https://issues.chromium.org/issues/405143032 https://www.cve.org/CVERecord?id=CVE-2025-2783

    Earliest third-party post we hold.

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  2. Vendor statement

    at disclosure

    Google advisory chrome-6183811296501840105/CVE-2025-2783ClaimedQuote verified

    The Stable channel has been updated to 134.0.6998.177 /.178 for Windows which will roll out over the coming days/weeks. A full list of changes in this build is available in the Log . Extended stable

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    Found in the archived copy
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    sha256:4f525e4b9b207b96…
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  3. First workaround

    No official mitigation found yet.

  4. First fix

    at disclosureUnverified: quote not found in the archived copy

    Google advisory chrome-6183811296501840105/CVE-2025-2783ClaimedQuote not found in archive

    The Stable channel has been updated to 134.0.6998.177 /.178 for Windows which will roll out over the coming days/weeks.

    Stable Channel Update for Desktop: build fixing the listed CVEs (one candidate per channel/platform)

    Recorded time
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    Not found in the archived copy. Treat with caution.
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    sha256:a0d6daf4d8c8ef06…
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  5. Fixed for all versions

    at disclosureUnverified: derived by rule, not read from a source

    Google advisory chrome-6183811296501840105/CVE-2025-2783Inferred

    The Stable channel has been updated to 134.0.6998.177 /.178 for Windows which will roll out over the coming days/weeks. A full list of changes in this build is available in the Log . Extended stable

    Patch-day rule: Google ships fixes in the advisory that discloses a bug, and this advisory states that fixed versions exist. So the vendor statement, first fix and fix for all versions all take the advisory's publication time.

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    sha256:4f525e4b9b207b96…
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    Yes
    Dispute this timestamp

Send this to your boss

No brief for this incident yet. We write one for every open incident and every critical bug exploited before a fix.

Affected products

  • Chromium Mojo
  • Chrome

Related

Google report card