PatchSiren cyber security CVE debrief
CVE-2026-84333 Google CVE debrief
CVE-2026-84333 is a critical use-after-free vulnerability in Dawn within Google Chrome on Android prior to version 152.0.7977.75. This vulnerability, with a CVSS score of 9.6, could allow a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. The Chromium security severity is rated as High. The vulnerability affects Google Chrome on Android devices, and defenders should assess exposure and prioritize updates to mitigate this vulnerability. The CVE record and NVD detail page provide information on the vulnerability, including its CVSS score and severity.
- Vendor
- Product
- Chrome
- CVSS
- CRITICAL 9.6
- 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 on Android devices should assess exposure and prioritize updates to mitigate this vulnerability.
Why it matters
CVE-2026-84333 is a critical use-after-free vulnerability in Google Chrome on Android that could allow remote code execution. Defenders should prioritize updates to mitigate this vulnerability.
- Remote code execution outside the sandbox
- Potential for arbitrary code execution
- Requires immediate attention for Android device users
Technical summary
The vulnerability is a use-after-free issue in Dawn within Google Chrome on Android. This could allow a remote attacker to execute arbitrary code outside the sandbox via a crafted HTML page. The CVSS score is 9.6, indicating a critical severity. The vulnerability affects Google Chrome on Android prior to version 152.0.7977.75. Defenders should prioritize updating Google Chrome to version 152.0.7977.75 or later on Android devices to mitigate this vulnerability.
Defensive priority
Defenders should prioritize updating Google Chrome to version 152.0.7977.75 or later on Android devices to mitigate this vulnerability.
Recommended defensive actions
- Update Google Chrome to version 152.0.7977.75 or later on Android devices
- Review and monitor Google Chrome updates for Android
- Assess exposure of Google Chrome on Android in your organization's inventory
Evidence notes
The CVE record and NVD detail page provide information on the vulnerability, including its CVSS score and severity. However, further analysis is required to determine the full scope of affected systems and potential impact.
Sources and references
Verified primary and authoritative sources
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CVE-2026-84333 CVE Program record
Publisher, destination, and source semantics verified
URL: https://www.cve.org/CVERecord?id=CVE-2026-84333
CVE Program - Official CVE Program record with source-provided CVE metadata.
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CVE-2026-84333 NVD vulnerability detail
Publisher, destination, and source semantics verified
URL: https://nvd.nist.gov/vuln/detail/CVE-2026-84333
NIST National Vulnerability Database - Official NIST NVD detail page and source-specific vulnerability assessment.
Supplemental references
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Source reference
Unverified legacy reference
URL: https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop.html
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Source reference
Unverified legacy reference
URL: https://issues.chromium.org/issues/549311485
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.