EUVD-2026-65881
GHSA-cxwc-8xr5-5vq2
Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network delivery via crafted HTML requires active user visit (UI:R); scope unchanged (S:U) because execution is confined to Chrome's renderer sandbox with no confirmed host escape.
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
Buffer overflow in Media 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: Medium)
AnalysisAI
Heap buffer overflow in Google Chrome's Media component prior to version 152.0.7977.65 enables remote code execution inside the renderer sandbox when a user visits a crafted HTML page. The CVSS 8.8 (AV:N/AC:L/PR:N/UI:R/S:U) reflects low attack complexity and no authentication requirement, but the unchanged scope (S:U) confirms execution is sandboxed - a full system compromise would require a separate sandbox escape not described in this CVE. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The victim must actively open or be redirected to a crafted HTML page using Google Chrome prior to version 152.0.7977.65; user interaction (UI:R) is required - the browser will not trigger the vulnerability passively. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 8.8 High score is technically justified by network delivery, low complexity, no authentication, and high C/I/A impact within the renderer process. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An attacker hosts a web page containing crafted media content (audio or video) designed to trigger a heap buffer overflow in Chrome's Media component during parsing or decoding. A victim using an unpatched Chrome version visits the page - through a phishing link, malicious advertisement, or compromised legitimate site - causing arbitrary code to execute within Chrome's renderer sandbox. … |
| Remediation | The primary fix is upgrading Google Chrome to version 152.0.7977.65 or later via the browser's built-in update mechanism or enterprise deployment tools (Google Update, Intune, etc.). … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, inventory current Chrome versions deployed across endpoints and prepare patch deployment infrastructure to expedite rollout. …
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Same weakness CWE-122 – Heap-based Buffer Overflow
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External POC / Exploit Code
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