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CVE-2026-12450 Google CVE debrief

CVE-2026-12450 is a High-severity vulnerability in Google Chrome's Media implementation. A remote attacker can exploit this issue by crafting an HTML page to obtain potentially sensitive information from process memory. This vulnerability was publicly disclosed on June 17, 2026, and has a CVSS score of 6.5 (Medium severity). Users of Google Chrome prior to version 149.0.7827.155 are affected. To mitigate this risk, users should update Google Chrome to the latest version.

Vendor
Google
Product
Chrome
CVSS
MEDIUM 6.5
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-17
Original CVE updated
2026-06-17
Advisory published
2026-06-17
Advisory updated
2026-06-17

Who should care

This vulnerability affects users of Google Chrome, particularly those who browse the web using the Chrome browser. Organizations and individuals who use Chrome for daily activities should prioritize updating to the latest version to prevent potential exploitation.

Technical summary

The vulnerability is caused by an inappropriate implementation in the Media component of Google Chrome. Specifically, a remote attacker can craft an HTML page to access sensitive information from the process memory of a Chrome user. This issue was addressed by Google in Chrome version 149.0.7827.155. The Common Vulnerability Scoring System (CVSS) score for this vulnerability is 6.5, indicating a Medium severity level.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.155 or later
  • Ensure all Chrome browsers in the organization are updated to the latest version
  • Review browser extensions and plugins to ensure they are updated and do not introduce additional vulnerabilities
  • Implement a vulnerability management process to stay informed about Chrome updates and security advisories
  • Consider implementing a defense-in-depth strategy with multiple layers of security controls
  • Monitor Chrome's official release blog and security advisories for future updates
  • Use a reputable security information and event management (SIEM) system to detect potential exploitation attempts

Evidence notes

The information provided is based on the official CVE record and NVD details. The vulnerability was publicly disclosed on June 17, 2026. The CVSS score and severity level are based on the CVSS:3.1 vector provided in the NVD data.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-12450 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-12450

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

  • CVE-2026-12450 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-12450

    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.