Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLure victim to crafted web page
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DeliveryDeliver malicious HTML to renderer
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ExploitTrigger DOM memory corruption
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ExecutionExecute arbitrary code inside sandbox
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ImpactCompromise renderer process (sandbox escape needed for host)
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, buffer size validation
MITRE ATT&CK
2 techniques across 2 tactics: Execution, Privilege Escalation The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires an attacker to get a victim using an affected Chrome build (prior to 156.0.8078.79) to render attacker-controlled HTML - i.e. visit a malicious or compromised web page (UI:R in the CVSS vector). No authentication or prior privileges are needed (PR:N), and no special victim-side configuration is indicated; default Chrome configurations are affected. The principal limiting factors are: (1) mandatory user interaction (the victim must load the page), which blocks fully automated/wormable spread and is consistent with SSVC Automatable: no; and (2) the description places code execution 'inside the sandbox', so by itself this yields only renderer-process compromise - host-level impact additionally requires a separate sandbox-escape vulnerability. |
| Impact | Signals here point to a serious-but-not-emergency issue. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R) describes a network-reachable, low-complexity, unauthenticated flaw that still requires user interaction - the victim must load a crafted HTML page - with high confidentiality, integrity and availability impact (C:H/I:H/A:H). Google rates the Chromium severity High. However, the exploitation-pressure signals are low: EPSS is only 0.20% (10th percentile), the SSVC framework reports Exploitation: none and Automatable: no (consistent with requiring a user to visit a page rather than mass worm-style spread), and there is no CISA KEV listing. SSVC Technical Impact: total aligns with the total-impact CVSS triad and the 'execute arbitrary code' description. The one notable caveat is that the description explicitly says code execution occurs 'inside the sandbox' - i.e. this is a renderer-process compromise, not a confirmed sandbox escape, so real-world impact normally requires chaining with a separate sandbox-escape bug to reach the host. The vuln.today priority is 'this_week', which matches a high-severity, patch-available browser RCE with no active exploitation: important to roll out promptly, but not an act_now/emergency item. Net: a real priority for patch deployment, but current data indicates no widespread or automated exploitation. |
| Exploit ScenarioDerived | An attacker hosts or compromises a web page containing malicious HTML that triggers the DOM memory-corruption flaw when rendered by a vulnerable Chrome build, and lures a victim to visit it (UI:R). Successful exploitation corrupts memory in the renderer and can lead to arbitrary code execution within the browser sandbox. No public exploit code has been identified at the time of analysis, and reaching beyond the sandbox would require an additional escape. |
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Alert meAnalysisAIv1 – Oct 30, 2026
Remote code execution inside the Chrome renderer sandbox affects Google Chrome builds prior to 156.0.8078.79, where memory corruption in the DOM lets a crafted HTML page execute arbitrary code. Attackers must convince a victim to load attacker-controlled HTML (UI:R) and need no credentials, but the impact is confined to the sandboxed renderer unless a separate sandbox-escape vulnerability is chained. No public exploit identified at time of analysis; the issue is not in CISA KEV, and an EPSS score of 0.20% (10th percentile) indicates low predicted exploitation.
RemediationAI
Apply the vendor-released patch by updating Google Chrome to version 156.0.8078.79 or later; the Chrome stable-channel advisory is at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02107719452.html and the corresponding Chromium issue is https://issues.chromium.org/issues/576203565. No workaround is documented in the available sources, and updating is the complete fix identified by the vendor.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
The flaw is classified as CWE-119, improper restriction of operations within the bounds of a memory buffer, in Chrome's DOM implementation. CPE data identifies the affected package as google:chrome (cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*), meaning all Chrome builds before the fixed release are in scope regardless of platform. The CVSS vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) shows a network-reachable, low-complexity bug that requires the victim to render attacker-controlled HTML and needs no privileges, while the scope remains unchanged because the code execution is confined to the renderer sandbox. The specific DOM path and the exact operation that overflows are not described in the available sources.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-reachable via a crafted page with no privileges (AV:N/PR:N) but requires the victim to load it (UI:R); code execution is confined to the renderer sandbox so scope is unchanged (S:U) with full renderer-level C/I/A impact.
Primary rating from Vendor (Chrome).
CVSS VectorVendor: Chrome
Lifecycle Timeline
3DescriptionCVE.org
Memory corruption in DOM in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)
Executive ViewAI
Google Chrome versions prior to 156.0.8078.79 contain a high-severity remote code execution vulnerability in the DOM renderer, affecting all employees who use Chrome for business tasks. While no active exploitation has been observed, a successful attack could allow an attacker to execute code within the browser's sandbox, potentially leading to data theft or further compromise if chained with a sandbox escape.
Apply vendor patch.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
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EUVD-2026-113436
GHSA-9h8c-qg3m-vm5p
NVD
CVE.org
EPSS
Vulnrichment
VulDB
Exploit-DB