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PatchSiren cyber security CVE debrief

CVE-2026-12012 Google CVE debrief

CVE-2026-12012 is a high-severity vulnerability in Google Chrome prior to version 149.0.7827.115. The vulnerability is a use-after-free issue in the Network component, which could allow an attacker in a privileged network position to potentially exploit heap corruption via malicious network traffic. The CVSS score for this vulnerability is 8.1, indicating a high level of severity.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.1
CISA KEV
Not listed in stored evidence
Original CVE published
2026-06-11
Original CVE updated
2026-06-23
Advisory published
2026-06-11
Advisory updated
2026-06-23

Who should care

Users of Google Chrome prior to version 149.0.7827.115, particularly those in privileged network positions, should be aware of this vulnerability and take steps to update their browsers.

Technical summary

The vulnerability is a use-after-free issue in the Network component of Google Chrome. This could allow an attacker in a privileged network position to potentially exploit heap corruption via malicious network traffic.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 149.0.7827.115 or later.

Evidence notes

The CVE record and NVD detail for CVE-2026-12012 provide additional information about this vulnerability.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-12012 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-12012

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

  • CVE-2026-12012 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-12012

    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.