Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
-
AccessCraft malicious HTML page
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DeliveryUser visits webpage in Chrome browser
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ExploitTrigger use-after-free in Blink renderer
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ExecutionCorrupt heap memory
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ImpactExecute arbitrary code with renderer privileges
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A06:2021 - Vulnerable and Outdated Components
ASVS 5.0
V15 - Secure Coding and Architecture Memory lifecycle management
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 unauthenticated attacker can exploit this via crafted HTML page. Victim must open/visit the malicious page in Google Chrome versions prior to 146.0.7680.153. No special configuration required — affects default Chrome installations. |
| Impact | The real-world risk is HIGH despite the absence of a CVSS vector score in the provided data. Several signals indicate imminent exploitation potential: (1) The vulnerability is in a ubiquitous, remotely accessible renderer used by hundreds of millions of users; (2) The attack vector is Network with likely Low complexity (crafted HTML page), requiring no user privileges beyond visiting a malicious website; (3) The technical impact is Heap Corruption, which is automatable and can lead to both Denial of Service and potential Remote Code Execution; (4) A patch is already available, suggesting security researchers have validated the flaw; (5) Debian is actively tracking this across 9 releases, indicating downstream operational urgency. While KEV status and POC availability are not explicitly confirmed in the provided data, the combination of high Chromium severity rating, memory corruption impact, and network-based attack vector places this in the critical patch-immediately category per SSVC framework. This is NOT a low-risk false positive—heap corruption in rendering engines is consistently exploited by sophisticated threat actors. |
| Exploit ScenarioDerived | An attacker crafts a malicious HTML page containing specific DOM manipulation code that triggers the use-after-free condition in Blink's memory manager. When a victim visits the attacker-controlled website or clicks a link to it, Chrome's renderer processes the HTML, inadvertently frees an object while maintaining an internal pointer to it, and subsequently attempts to access the freed memory. This could cause an immediate crash (Denial of Service) or, with sophisticated heap grooming techniques, allow the attacker to overwrite heap metadata to achieve arbitrary code execution within the Chrome sandbox. Given the network attack vector and low complexity, this vulnerability is highly likely to be weaponized in malware distribution campaigns or targeted attacks once public exploit code emerges. |
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Alert meAnalysisAIv1 – Mar 20, 2026
Heap memory corruption in Google Chrome's Blink rendering engine prior to version 146.0.7680.153 can be triggered through a malicious HTML page, potentially enabling remote code execution. An unauthenticated attacker requires only user interaction to exploit this use-after-free vulnerability across network boundaries. A patch is available for affected Chrome, Ubuntu, and Debian users.
Earlier versions of this analysis (1)
A use-after-free vulnerability exists in the Blink rendering engine of Google Chrome prior to version 146.0.7680.153, allowing remote attackers to potentially exploit heap corruption and achieve denial of service or arbitrary code execution through a specially crafted HTML page. This is a high-severity memory safety issue affecting millions of Chrome users across desktop platforms, with patches already available from Google as of March 2026. While no active exploitation in the wild has been confirmed via KEV status, the vulnerability's high severity and ease of trigger via web content make it a critical priority for immediate patching.
RemediationAI
Immediately upgrade Google Chrome to version 146.0.7680.153 or later via the built-in update mechanism (Settings > About > Chrome, or manual download from https://www.google.com/chrome/). For Debian-based systems, apply security updates via apt-get update && apt-get upgrade once patches are released. Users unable to update immediately should disable JavaScript execution in less-trusted browser contexts, restrict browsing to known-safe websites, and consider using sandboxing features (such as Windows Sandbox or virtual machines) when accessing untrusted content. Enterprise deployments should enforce automatic updates via group policies (Windows) or MDM solutions and monitor for any exploitation attempts in web server logs. The vendor advisory at https://chromereleases.googleblog.com/2026/03/stable-channel-update-for-desktop_18.html confirms patch availability as of March 2026.
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 the Blink rendering engine (Chromium's fork of WebKit), which parses and renders HTML, CSS, and JavaScript in Google Chrome. The root cause is classified as CWE-416 (Use After Free), a memory safety flaw where the renderer attempts to access heap-allocated objects after they have been freed, potentially leading to information disclosure or code execution. Attackers can trigger this flaw by crafting malicious HTML pages that manipulate the Document Object Model (DOM) in a way that causes Blink to free memory prematurely while maintaining stale pointers. The vulnerability affects Chrome versions below 146.0.7680.153 across all supported platforms (Windows, macOS, Linux), as confirmed by the Chromium Issues tracker (issues.chromium.org/issues/487117772). The affected product is Google Chrome (CPE: cpe:2.3:a:google:chrome), with specific vulnerable versions documented in the EUVD database as all releases prior to 146.0.7680.153.
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- Exploit and PoC references, threat intelligence from 22 sources
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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
Use after free in Blink 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 Blink in Google Chrome face significant risk from CVE-2026-4449, a use-after-free vulnerability rated CVSS 8.8. Successful exploitation could significantly impact the confidentiality, integrity, or availability of affected systems. 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
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
Use-after-free vulnerabilities occur when a program continues to access memory through a pointer after that memory has been deallocated.
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.
Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.
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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 |
EUVD-2026-13465
NVD
CVE.org
EPSS
Vulnrichment
VulDB
GitHub PoC
Exploit-DB