Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLure victim to crafted HTML page
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ExploitPage triggers memory corruption in Chrome Core
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ExecutionOverflow corrupts renderer memory
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ImpactExecute arbitrary code within sandbox
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 a victim to actively open or render an attacker-crafted HTML page in a vulnerable Chrome build (any version prior to 156.0.8078.47); this user-interaction requirement (CVSS UI:R) is the primary limiting factor. No authentication or special configuration is needed, and default Chrome configurations are affected. A critical LIMIT is that the description scopes code execution to 'inside the sandbox' - the renderer process - so a successful attacker remains confined and would need a chained sandbox-escape vulnerability to compromise the underlying OS or access data outside the renderer. |
| Impact | The input CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, base 8.8) describes a network-reachable, low-complexity, unauthenticated memory-corruption flaw requiring only that a victim open a crafted HTML page - a classic drive-by browser profile. However, two signals pull the real-world priority DOWN and directly conflict with the 8.8 base score: (1) Google/Chromium explicitly rated this 'security severity: Low', and (2) the description states code execution occurs 'inside the sandbox', meaning a successful attacker is confined to the renderer process and would need a separate sandbox-escape bug to reach the host - a limitation the CVSS vector does not capture (CVSS keeps S:U and C/I/A:H for in-sandbox compromise). No EPSS score, no CISA KEV listing, and no public POC were provided in the input, so there is no evidence of active exploitation or weaponization. Net assessment: patch on the normal Chrome auto-update cadence, but this is a high-CVSS / low-real-risk item for most environments - the vendor's own 'Low' rating plus sandbox confinement make it far less urgent than the 8.8 number implies. Verify: the 8.8 base score and the vendor 'Low' severity are in tension; the sandbox-confined impact is the likely reason and should be weighed over the raw CVSS number. |
| Exploit ScenarioDerived | An attacker hosts a malicious web page (or injects malicious content into a compromised/ad-served page) that triggers the memory-corruption bug in Chrome's Core component when rendered. A victim simply visiting the page could have attacker-controlled code executed within the browser's sandboxed renderer process; full host compromise would additionally require a separate sandbox-escape vulnerability. No public exploit code was identified in the provided data. |
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Alert meAnalysisAIv1 – Oct 21, 2026
Memory corruption in the Core component of Google Chrome versions prior to 156.0.8078.47 allows remote attackers to potentially execute arbitrary code inside the renderer sandbox when a victim opens a crafted HTML page. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R, base 8.8) reflects a drive-by profile: no authentication or special configuration is required, but exploitation hinges on user interaction (UI:R), and the description explicitly confines code execution to 'inside the sandbox' - so an attacker remains limited to the renderer process and would need a chained sandbox escape to affect the underlying OS. No public exploit code or confirmed active exploitation was identified in the provided intelligence at time of analysis, and Chromium's own severity rating for this issue is Low despite the 8.8 base score.
RemediationAI
Vendor-released patch: upgrade Google Chrome to version 156.0.8078.47 or later, distributed via the Stable Channel update described at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html; Chrome's own updater will normally apply this automatically, but managed fleets should force the update and verify the reported version. Chromium-based browsers and embedded Chromium frameworks must ship the equivalent upstream fix, so confirm each vendor's build number rather than assuming compatibility. As a compensating control pending rollout, enforce site isolation and keep the renderer sandbox enabled (disabling it removes the primary containment boundary that limits this bug to the renderer process), restrict or disable untrusted web content for high-value browsing profiles via allow-listing, and consider blocking known-bad domains at the proxy - though URL filtering has limited value against a bug reachable from arbitrary attacker-hosted pages and adds operational overhead. Because exploitation requires the victim to open a crafted page, reducing unnecessary browsing in privileged contexts lowers exposure, but patching remains the only complete fix.
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 a memory-corruption issue (CWE-119: improper restriction of operations within the bounds of a memory buffer) in Chrome's Core component, the shared rendering and browser-engine code that parses and processes web content. Bounds errors of this class typically arise from insufficient length or index validation on attacker-controlled input during HTML parsing and layout, allowing an out-of-bounds write or read that can be shaped into controlled memory corruption. Because the bug is reachable purely through a crafted HTML page, it follows the classic browser exploitation model: the renderer must first be compromised, then a separate sandbox-escape primitive is required to break out of Chrome's process isolation. CPE data was not supplied; EUVD lists affected builds as Chrome releases below 156.0.8078.47, and the vendor advisory is the October 2026 Stable Channel update for desktop. Chromium's 'Low' severity label indicates exploitation is considered difficult or requires unusual conditions, which tempers the high base score.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Remote crafted page with no auth gives AV:N/AC:L/PR:N, victim must open the page so UI:R; code runs in the sandbox with no scope change (S:U) but full renderer-context C/I/A:H.
Primary rating from Vendor (google).
CVSS VectorVendor: google
Lifecycle Timeline
3DescriptionCVE.org
Memory corruption in Core in Google Chrome prior to 156.0.8078.47 allowed a remote attacker to potentially execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: Low)
Executive ViewAI
Google Chrome releases before 156.0.8078.47 carry a memory-corruption flaw that can be triggered when a user opens a crafted web page, with potential code execution confined to the renderer sandbox unless a separate sandbox escape is chained. No public exploit has been identified at time of analysis, so immediate business exposure is concentrated in unpatched browser fleets and users who browse untrusted content. Leadership should care because browser compromise can affect productivity and data handling even when containment reduces operating-system impact.
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.
EUVD-2026-105733
GHSA-p4m8-rx86-wjjw
NVD
CVE.org
EPSS
Exploit-DB