EUVD-2026-66070
GHSA-44pj-7w5j-6h8g
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered via crafted HTML, no privileges needed, single user browse action required (UI:R); scope unchanged as impact is confined to the Chrome sandbox.
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
3DescriptionCVE.org
Use after free in V8 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: Low)
AnalysisAI
Remote code execution within the Chrome sandbox is achievable in Google Chrome prior to 152.0.7977.65 through a use-after-free vulnerability in V8, Chrome's JavaScript engine, triggered by a crafted HTML page. Any unauthenticated remote attacker who can induce a user to visit a malicious URL can exploit this flaw; however, execution is confined to the Chrome sandbox, meaning a chained sandbox escape would be required for full host-system compromise. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must visit an attacker-controlled or compromised web page using an unpatched version of Google Chrome (any version prior to 152.0.7977.65); this is the sole prerequisite. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 3.1 base score of 8.8 (High) reflects network reachability, no authentication, and full confidentiality, integrity, and availability impact within the affected scope, but the Unchanged scope (S:U) and Chromium's own Low severity designation both signal that impact is bounded to the browser sandbox. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a malicious web page containing crafted JavaScript that triggers the V8 use-after-free condition, then distributes the link via phishing email or malvertising. When a victim running an unpatched Chrome version visits the page, V8 processes the script, a freed memory region is reused with attacker-controlled data, and arbitrary code executes within the Chrome renderer sandbox. … |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later immediately; this is the vendor-confirmed fix documented in the Chrome Stable Channel release blog at https://chromereleases.googleblog.com/2026/08/stable-channel-update-for-desktop_0256176589.html. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, audit your organization's Chrome deployment to identify current versions and notify users to update immediately; check device management systems for version distribution. …
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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
Leaving vuln.today