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PatchSiren cyber security CVE debrief

CVE-2026-10949 Google CVE debrief

CVE-2026-10949 is a High-severity vulnerability in Google Chrome, specifically a heap buffer overflow in the Video component. This issue, tracked by Chromium as a High severity security issue, could allow a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.3
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 prior to version 149.0.7827.53 should update to the latest version to mitigate this vulnerability. An attacker could exploit this vulnerability to potentially escape the sandbox, which could lead to arbitrary code execution or other malicious activities.

Technical summary

The vulnerability is caused by a heap buffer overflow in the Video component of Google Chrome. This occurs when the browser fails to properly handle certain types of HTML content, allowing an attacker to overflow a buffer and execute arbitrary code.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.53 or later.
  • Ensure that all users of Google Chrome are running the latest version.

Evidence notes

This CVE was published on [cvePublishedAt] and modified on [cveModifiedAt]. The vulnerability has a CVSS score of 8.3, indicating a High severity level.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-10949 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-10949

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

  • CVE-2026-10949 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-10949

    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.