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CVE-2026-11003 Google CVE debrief

CVE-2026-11003 is a use-after-free vulnerability in WebRTC in Google Chrome prior to 149.0.7827.53. This vulnerability allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. The CVSS score for this vulnerability is 8.8, indicating a high severity.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.8
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-04
Original CVE updated
2026-06-06
Advisory published
2026-06-04
Advisory updated
2026-06-06

Who should care

Users of Google Chrome prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability.

Technical summary

The vulnerability is a use-after-free issue in the WebRTC component of Google Chrome. This occurs when the program attempts to use memory after it has been freed, which can lead to arbitrary code execution.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.

Evidence notes

This vulnerability was reported by [email protected] and has a CVSS vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Official resources

CVE-2026-11003 was published on 2026-06-04T23:17:04.053Z and modified on 2026-06-06T01:54:47.483Z.