EUVD-2026-40802
GHSA-3wq9-fwp9-c2mc
Severity by source
AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-delivered crafted page (AV:N) but requires prior renderer compromise plus timing (AC:H) and victim page load (UI:R); privilege escalation yields high C/I/A within the browser (S:U).
Primary rating from Vendor (google).
CVSS VectorVendor: google
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Insufficient validation of untrusted input in Cast in Google Chrome prior to 150.0.7871.47 allowed a remote attacker who had compromised the renderer process to perform privilege escalation via a crafted HTML page. (Chromium security severity: Low)
AnalysisAI
Privilege escalation in Google Chrome's Cast component before 150.0.7871.47 allows a remote attacker who has already compromised the renderer process to escape renderer-level restrictions and gain higher privileges via a crafted HTML page. Rated Low severity by Chromium despite a 7.5 CVSS, it functions as a second-stage sandbox-escape primitive rather than a standalone initial-access bug. …
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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 (a prior-stage exploit is a hard prerequisite, per the description), and then delivers a crafted HTML page that exercises Chrome's Cast component - so the Cast/media-routing code path must be reachable. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals point to a real but conditional, low-urgency issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker first compromises the Chrome renderer through a separate memory-corruption or logic bug (a common first stage), then serves a crafted HTML page that feeds malformed input into the Cast component; the browser process mishandles this input and grants the attacker elevated privileges beyond the renderer sandbox. Because AC is High and user interaction is required, the victim must load attacker-controlled content and the exploit is unreliable. … |
| Remediation | Vendor-released patch: update Google Chrome to 150.0.7871.47 or later via the Stable channel and relaunch the browser to apply the fix (managed fleets should force-update through enterprise policy). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours: Identify all Chrome deployments and current versions. …
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Same weakness CWE-20 – Improper Input Validation
View allSame technique Privilege Escalation
View allVendor StatusVendor
SUSE
Severity: Important| 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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