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CVE-2026-11009 Google CVE debrief

CVE-2026-11009 is a use after free vulnerability in USB in Google Chrome on Windows. The vulnerability, which has a CVSS score of 9.6 and a severity of CRITICAL, allowed a remote attacker to potentially perform a sandbox escape via a crafted HTML page. The vulnerability was reported on June 4, 2026, and the Chrome browser was updated to version 149.0.7827.53 to address the issue.

Vendor
Google
Product
Chrome
CVSS
CRITICAL 9.6
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-07-22
Advisory published
2026-06-04
Advisory updated
2026-07-22

Who should care

Users of Google Chrome on Windows should update to version 149.0.7827.53 or later to address this vulnerability.

Technical summary

The vulnerability is a use after free issue in the USB component of Google Chrome on Windows. This type of vulnerability occurs when a program attempts to use memory after it has been freed, which can lead to unexpected behavior and potentially allow an attacker to execute arbitrary code.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Review and apply the vendor advisory: [ref-4](https://chromereleases.googleblog.com/2026/06/stable-channel-update-for-desktop.html)

Evidence notes

The CVE record and NVD detail can be found at [cve-org](https://www.cve.org/CVERecord?id=CVE-2026-11009) and [nvd](https://nvd.nist.gov/vuln/detail/CVE-2026-11009), respectively.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-11009 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-11009

    CVE Program - Official CVE Program record with source-provided CVE metadata.

  • CVE-2026-11009 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-11009

    NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.

Supplemental references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.