EUVD-2026-65777
GHSA-6x88-35m6-5r8v
Severity by source
AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Network delivery, high complexity (chained renderer compromise plus social engineering), no target-system privileges needed, user interaction required, scope change for sandbox escape with full CIA impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
Lifecycle Timeline
4DescriptionCVE.org
Incorrect authorization in USB in Google Chrome prior to 152.0.7977.65 allowed a remote attacker who had compromised the renderer process and leveraged social engineering to potentially execute arbitrary code outside the sandbox via a crafted HTML page. (Chromium security severity: High)
AnalysisAI
Sandbox escape via incorrect USB authorization in Google Chrome prior to 152.0.7977.65 allows a remote attacker who has already compromised the renderer process to execute arbitrary code outside the Chrome sandbox through a crafted HTML page combined with social engineering. The attack chain is multi-stage: the USB subsystem fails to correctly authorize renderer-process requests, enabling a scoped privilege escalation out of the sandbox (S:C in CVSS). …
Unlock full vulnerability intelligence
- Risk assessment & exploitation conditions
- Attack chain visualization
- Remediation with exact patch versions
- Threat intelligence from 22 sources
- Personal watchlist & email alerts
Free forever · No credit card required
Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires two chained conditions: (1) the attacker must already have achieved code execution within the Chrome renderer process via a separate, independently exploited vulnerability - this is an explicit prerequisite stated in the CVE description, not an optional condition; and (2) social engineering must be used to facilitate the crafted HTML page interaction, confirmed by UI:R in the CVSS vector. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | CVSS 8.3 (High) with S:C (scope change) correctly captures the sandbox-escape nature of this flaw, but the AC:H and UI:R modifiers are critical context: exploitation is not straightforward. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Update Google Chrome to version 152.0.7977.65 or later; this is the vendor-confirmed patched release documented 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, identify all Chrome installations across the organization and prepare rollout plan for version 152.0.7977.65 or later, prioritizing users with administrative access or handling sensitive data. …
Sign in for detailed remediation steps and compensating controls.
Threat intelligence, references, and detailed analysis are available after sign-in.
Same weakness CWE-863 – Incorrect Authorization
View allSame technique Authentication Bypass
View allShare
External POC / Exploit Code
Leaving vuln.today