PatchSiren

PatchSiren cyber security CVE debrief

CVE-2026-84349 Google CVE debrief

CVE-2026-84349 debrief based on CVE Program and NVD records. The vulnerability is a use-after-free issue in Google Chrome prior to version 152.0.7977.75, which allows remote attackers to execute arbitrary code outside the sandbox via a crafted HTML page. Defenders should assess exposure and prioritize updates to version 152.0.7977.75 or later. This issue has a high severity with a CVSS score of 8.3. The CVE record was published on 2026-09-02T00:18:28.770Z and has not been modified since then.

Vendor
Google
Product
Chrome
CVSS
HIGH 8.3
CISA KEV
Not listed in stored evidence
Original CVE published
2026-09-02
Original CVE updated
2026-09-03
Advisory published
2026-09-02
Advisory updated
2026-09-03

Who should care

Defenders responsible for managing Google Chrome deployments should assess exposure and prioritize updates to version 152.0.7977.75 or later. They should also review and verify Chrome version in use, monitor for potential exploitation attempts, and consider compensating controls for exposed systems while remediation is scheduled and verified.

Why it matters

CVE-2026-84349 is a high-severity use-after-free vulnerability in Google Chrome that allows remote attackers to execute arbitrary code outside the sandbox. Defenders managing Chrome deployments should assess exposure, prioritize updates to version 152.0.7977.75 or later, and monitor for potential exploitation attempts.

  • Potential code execution outside the sandbox
  • Remote attacker exploitation via crafted HTML pages
  • Required version update to 152.0.7977.75 or later

Technical summary

A use-after-free vulnerability exists in Google Chrome prior to 152.0.7977.75, allowing a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. This issue has a high severity with a CVSS score of 8.3. The vulnerability is confirmed by official CVE Program and NVD records. Defenders should assess exposure and prioritize updates to version 152.0.7977.75 or later.

Defensive priority

High

Recommended defensive actions

  • Update Google Chrome to version 152.0.7977.75 or later
  • Review and verify Chrome version in use
  • Monitor for potential exploitation attempts

Evidence notes

Official CVE Program and NVD records confirm a use-after-free vulnerability in Google Chrome prior to 152.0.7977.75. The CVE record was published on 2026-09-02T00:18:28.770Z and has not been modified since then. Defenders should verify Chrome version in use and monitor for potential exploitation attempts. The vulnerability allows remote attackers to execute arbitrary code outside the sandbox via a crafted HTML page.

Sources and references

Verified primary and authoritative sources

  • CVE-2026-84349 CVE Program record

    Publisher, destination, and source semantics verified

    URL: https://www.cve.org/CVERecord?id=CVE-2026-84349

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

  • CVE-2026-84349 NVD vulnerability detail

    Publisher, destination, and source semantics verified

    URL: https://nvd.nist.gov/vuln/detail/CVE-2026-84349

    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.