EUVD-2026-13467Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessAttacker crafts malicious HTML page
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DeliveryUser visits webpage in Chrome
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ExploitV8 engine processes out-of-bounds write
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ExecutionHeap corruption occurs
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ImpactArbitrary code execution achieved
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Bounds checking, write limits
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 | Remote attacker sends a crafted HTML page to victim. Victim must open/view the page in Google Chrome versions prior to 146.0.7680.153. No authentication required. Heap corruption via V8 JavaScript engine out-of-bounds write. |
| Impact | This vulnerability presents a substantial real-world risk despite the absence of CVSS vector details and EPSS scores in the provided data. The Chromium security team classified it as 'High' severity, indicating significant exploitability and impact potential. The attack vector is network-based (remote delivery via HTML), requires no user privileges beyond visiting a webpage, and heap corruption bugs are typically low complexity to exploit once discovered. While CVSS vector and EPSS scores are not provided, the combination of a patched vulnerability, memory corruption impact, and Chromium's high-severity rating suggests this was likely exploitable in the wild or demonstrated via proof-of-concept before patching. The availability of a stable patch (Chrome 146.0.7680.153) and tracking across multiple sources (EUVD, Debian, NVD) indicates coordinated disclosure and rapid mitigation. Organizations tracking Debian packages across 9 releases should prioritize patching immediately. |
| Exploit ScenarioDerived | An attacker creates a convincing phishing email or malicious website containing a specially crafted HTML page with JavaScript code designed to trigger the V8 out-of-bounds write. When a victim visits the page in an unpatched Chrome browser (versions prior to 146.0.7680.153), the V8 engine processes the malicious JavaScript, and the out-of-bounds write corrupts heap memory structures. This corruption can be leveraged to achieve arbitrary code execution, allowing the attacker to steal credentials, install malware, or pivot to other systems on the network. Given the network-based attack vector and low complexity typical of heap corruption exploits, this vulnerability likely had proof-of-concept code circulating in security research or exploit frameworks, making it a practical threat to users on older Chrome versions. |
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Alert meAnalysisAIv1 – Mar 20, 2026
Heap corruption in Google Chrome's V8 engine prior to version 146.0.7680.153 can be triggered through out-of-bounds memory writes when a user visits a malicious webpage. An unauthenticated remote attacker can exploit this vulnerability to achieve arbitrary code execution with high integrity and confidentiality impact. A security patch is available for affected users on Chrome, Ubuntu, and Debian systems.
Earlier versions of this analysis (1)
An out-of-bounds write vulnerability exists in the V8 JavaScript engine within Google Chrome prior to version 146.0.7680.153, allowing remote attackers to trigger heap corruption through a specially crafted HTML page. This memory corruption flaw, classified as high severity by Chromium security, enables potential arbitrary code execution or denial of service. The vulnerability affects millions of Chrome users across Windows, macOS, and Linux platforms, with patches available from the vendor.
RemediationAI
Immediately update Google Chrome to version 146.0.7680.153 or later via automatic updates or manual installation from https://www.google.com/chrome. Users can verify their version by navigating to chrome://settings/help, which will automatically check for and apply updates. For enterprise environments, deploy Chrome version 146.0.7680.153 or later through your management tools (Chrome Enterprise, Windows WSUS, or macOS MDM). Debian users should update chromium packages to the patched version once available in security repositories; check your distribution's security advisories at https://nvd.nist.gov/vuln/detail/CVE-2026-4450. As an interim risk reduction measure pending patching, restrict access to untrusted websites, disable JavaScript for high-risk domains if operationally feasible, or use sandbox restrictions (e.g., Chrome's native sandboxing or additional OS-level confinement). Do not rely on workarounds as a long-term solution; patching is mandatory.
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
This vulnerability resides in V8, Google's open-source JavaScript engine that powers Chrome and other Chromium-based browsers. The root cause is classified under CWE-787 (Out-of-bounds Write), a memory safety vulnerability where the engine fails to properly validate buffer boundaries during write operations. The flaw occurs at the heap level, meaning an attacker can corrupt critical memory structures by exploiting improper bounds checking in V8's JIT compiler, garbage collector, or built-in function implementations. When a user navigates to a malicious HTML page containing carefully crafted JavaScript code, the V8 engine processes the code without sufficient validation, writing beyond allocated memory boundaries and corrupting adjacent heap objects.
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Primary rating from NVD.
CVSS VectorNVD
Lifecycle Timeline
2DescriptionCVE.org
Out of bounds write in V8 in Google Chrome prior to 146.0.7680.153 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: High)
Executive ViewAI
Organizations using V8 in Google Chrome face significant risk from CVE-2026-4450, a out-of-bounds write vulnerability rated CVSS 8.8. Exploitation could allow attackers to corrupt memory, crash the application, or potentially execute arbitrary code. A patch is available and should be applied as part of regular vulnerability management.
Apply vendor patch. If immediate patching is not feasible: (1) Enable ASLR and DEP where available; (2) Implement network segmentation; (3) Monitor for exploitation indicators.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Vulnrichment
VulDB
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.
Memory corruption occurs when a program writes data beyond the boundaries of allocated memory regions or accesses memory in unintended ways, violating the integrity of the process's address space.
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Same weakness CWE-787 – Out-of-bounds Write
View allSame technique Buffer Overflow
View allVendor StatusVendor
Ubuntu
Priority: Medium| Release | Status | Version |
|---|---|---|
| jammy | not-affected | code not present |
| noble | not-affected | code not present |
| questing | not-affected | code not present |
| upstream | released | - |
Debian
| Release | Status | Fixed Version | Urgency |
|---|---|---|---|
| bullseye (security), bullseye | vulnerable | 120.0.6099.224-1~deb11u1 | - |
| bookworm | fixed | 146.0.7680.153-1~deb12u1 | - |
| bookworm (security) | fixed | 146.0.7680.153-1~deb12u1 | - |
| trixie | fixed | 146.0.7680.153-1~deb13u1 | - |
| trixie (security) | fixed | 146.0.7680.153-1~deb13u1 | - |
| forky | vulnerable | 146.0.7680.80-1 | - |
| sid | fixed | 146.0.7680.153-1 | - |
| bullseye | fixed | (unfixed) | end-of-life |
| (unstable) | fixed | 146.0.7680.153-1 | - |
SUSE
Severity: High| Product | Status |
|---|---|
| SUSE Package Hub 15 SP6 | Fixed |
| openSUSE Leap 15.6 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP6 | Fixed |
GitHub PoC
Exploit-DB