EUVD-2026-40587
GHSA-7pqf-g2j2-j5x4
Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
AC:H because a pre-existing renderer compromise is required; UI:R for page interaction and S:C/C:H/I:H/A:H reflect the full sandbox escape into the browser process.
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Insufficient policy enforcement in Serial in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: Medium)
AnalysisAI
Sandbox escape in Google Chrome desktop before 150.0.7871.47 lets an attacker who already controls a compromised renderer process break out of the browser sandbox through insufficient policy enforcement in the Web Serial API, using a crafted HTML page. Google rated the underlying Chromium bug Medium severity even though NVD assigns a 9.6 CVSS due to the scope-changing impact. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires that the attacker has ALREADY compromised the Chrome renderer process - this is a sandbox-escape/second-stage bug, not a standalone initial-access vector, and cannot be triggered against an unmodified renderer. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The signals conflict and must be weighed carefully. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker first lands a renderer-level compromise (for example via a separate memory-corruption bug delivered by a malicious or compromised web page), then serves crafted HTML that abuses the insufficiently policed Serial pathway to escalate out of the sandbox into the browser process. UI:R indicates the victim must interact (e.g. … |
| Remediation | Vendor-released patch: Chrome 150.0.7871.47 - upgrade all desktop Chrome installs to 150.0.7871.47 or later and restart the browser to apply the update (Chrome auto-updates, but relaunch is required to load the new binary; verify via chrome://settings/help in managed fleets). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Inventory all Chrome desktop deployments, identify systems running versions before 150.0.7871.47, and assess business-critical workstations and shared systems. …
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Information Disclosure
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
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External POC / Exploit Code
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