EUVD-2026-65766
GHSA-x6v8-wfj4-7jg6
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered via webpage with active user visit required; no privileges needed; sandbox scope unchanged limits blast radius despite high renderer-level C/I/A.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Use after free in Script in Google Chrome prior to 152.0.7977.65 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Use-after-free in Google Chrome's Script engine allows remote code execution confined to the renderer sandbox on all desktop platforms running versions prior to 152.0.7977.65. Exploitation requires only that a user visit a crafted HTML page - no authentication or special configuration is needed - making the attack surface broad wherever Chrome remains unpatched. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires a user running Google Chrome prior to version 152.0.7977.65 to actively visit a crafted HTML page, satisfying the UI:R condition in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) correctly reflects the low-friction, network-reachable nature of the flaw - any user browsing with an unpatched Chrome is one page visit away from exploitation. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious webpage containing carefully crafted JavaScript designed to trigger a use-after-free in Chrome's Script engine by manipulating heap allocation and deallocation timing. A user on an unpatched Chrome desktop browser visits the page - via phishing link, malvertising redirect, or a compromised legitimate site - resulting in arbitrary code execution within the renderer process sandbox. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later immediately using the browser's built-in update mechanism (Settings > Help > About Google Chrome) or via enterprise deployment tools such as Google Admin Console or software management platforms. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit all managed Chrome instances to identify versions prior to 152.0.7977.65 and segment critical systems for priority patching. …
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Same weakness CWE-416 – Use After Free
View allSame technique Use After Free
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External POC / Exploit Code
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