Skip to main content

Google Chrome EUVDEUVD-2026-105445

| CVE-2026-113293 HIGH
Use After Free (CWE-416)
2026-10-20 chrome-cve-admin@google.com GHSA-r4r2-x3q2-63r3
8.8
CVSS 3.1 · Vendor: google
View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Lure victim to crafted HTML page
  2. Delivery
    Serve malicious ANGLE/WebGL content
  3. Exploit
    Trigger use-after-free in renderer
  4. Execution
    Execute arbitrary code in sandbox
  5. Impact
    (chain separate escape for host impact)

Vulnerability Assessment

Weakness
CWE
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

Exploitation requires the victim to use Google Chrome on Windows at a version prior to 156.0.8078.47 and to actively load attacker-controlled content - the user must navigate to a crafted HTML page that exercises the ANGLE graphics backend (WebGL/GPU-accelerated rendering), so the flaw is reached through default browsing behavior but still depends on this user interaction (UI:R). Key limiting factors: (1) code execution is confined to the renderer sandbox, so no host compromise occurs without an additional sandbox-escape chain; (2) it is Windows-specific per the advisory; and (3) the user must open the malicious page. No authentication is required (PR:N).

Impact

CVSS 3.1 scores this 8.8 (High) with a fully remote, low-complexity, unauthenticated vector (AV:N/AC:L/PR:N) requiring only user interaction (UI:R) - i.e., a victim visiting a crafted HTML page - which is a realistic and common delivery path for browser bugs. However, a critical mitigating detail in the description tempers the raw score: code execution occurs INSIDE the Chrome sandbox (scope unchanged, S:U), so by itself this does not yield host compromise; a full attack requires chaining it with a separate sandbox-escape vulnerability. No EPSS score, SSVC decision, KEV listing, or POC was provided in the input, so there is no public exploit identified at time of analysis and no evidence of active exploitation. The absence of EPSS/KEV data means exploitation probability cannot be quantified from the inputs - it is MISSING, not low. Net: this is a legitimate priority because Chrome is ubiquitous and the vendor rates it High with a patch already shipped, but the real-world impact is gated by the sandbox and by the need for user interaction, placing it below a wormable/network-service RCE. Routine prompt patching is warranted rather than emergency response, absent evidence of a chained exploit.

Exploit ScenarioDerived

An attacker hosts or compromises a web page containing malicious WebGL/graphics content that triggers the use-after-free in Chrome's ANGLE graphics layer; a Windows user running a vulnerable Chrome build (prior to 156.0.8078.47) visits the page and the attacker gains arbitrary code execution within the renderer sandbox. To achieve full system compromise the attacker would then need to chain a separate sandbox-escape bug. No public exploit code was identified in the provided data.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.4% exploitation probability (EPSS)

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – Oct 21, 2026

Use-after-free in ANGLE, the WebGL/GPU translation layer shipped with Google Chrome on Windows, allows remote code execution inside the renderer sandbox when a victim loads a crafted HTML page in any build prior to 156.0.8078.47. The CVSS 3.1 vector (8.8 High, AV:N/AC:L/PR:N/UI:R) reflects an unauthenticated, low-complexity attack that hinges only on the user visiting attacker-controlled content, a routine browsing action, though the CVSS integrity/availability impact is scored independently of the sandbox boundary that actually contains the payload. Google rates the underlying Chromium issue High severity; no public exploit code was identified at time of analysis and the flaw is not in CISA KEV, but browser memory-corruption bugs of this class are routinely chained with a separate sandbox escape for full host compromise.

RemediationAI

Vendor-released patch: upgrade Google Chrome on Windows to 156.0.8078.47 or later via the stable channel update described at https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_02018666648.html; verify the installed build under chrome://version and force an update check through chrome://settings/help on managed fleets, and pin browser-management tooling (Chrome for Enterprise MSI/PKG, Google Update policies) to that minimum version. Because exploitation requires only that a user open a crafted page, prioritize patching any Chrome instance used for general web browsing or by users who follow untrusted links. No workaround fully removes the exposure: disabling hardware acceleration or launching with --disable-gpu reduces the D3D-backed attack surface but ANGLE/SwiftShader paths may still be reachable, so treat it as a stopgap with a visible rendering-performance cost rather than a fix; blocking WebGL outright is not exposed as a supported enterprise policy and doing so via command-line flags breaks many legitimate web applications and is easily bypassed by users launching Chrome directly. Where immediate upgrade is impossible, constrain the blast radius by keeping the renderer sandbox and site isolation enabled on Windows (do not disable --no-sandbox for compatibility troubleshooting), and monitor for follow-on sandbox-escape activity rather than assuming renderer compromise is contained indefinitely.

Affected VersionsENISA

Chrome 156.0.8078.47 <156.0.8078.47

Affected Packages

euvd chrome fix: 156.0.8078.47

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

ANGLE (Almost Native Graphics Layer Engine) is the cross-platform graphics abstraction Chromium uses to translate OpenGL ES / EGL calls from WebGL and GPU-accelerated rendering into native APIs - on Windows primarily Direct3D 9/11 and, as a fallback, the SwiftShader software rasterizer. Because WebGL content is fully attacker-controllable and ANGLE's resource lifetimes span multiple GPU command-buffer and IPC boundaries between the renderer and the GPU process, the component has historically been a rich source of lifetime errors. This issue is a CWE-416 use-after-free: a heap object (likely a shader, texture, or resource-wrapper structure) is freed while a still-valid reference is retained, and the attacker reallocates that memory with controlled contents before the dangling pointer is dereferenced, yielding an out-of-bounds write/read primitive. Per the vendor advisory the bug is Windows-specific, indicating the lifetime flaw is in the D3D-backed path rather than the shared front end. The CVSS vector carries PR:N (unauthenticated) and UI:R (the victim must load the crafted page), and the stated impact is code execution confined to the Chrome renderer sandbox rather than the host.

Know when Windows gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (google) PRIMARY 8.8 HIGH
AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 8.8 HIGH

Remote crafted page with no auth (AV:N/PR:N) but victim must visit it (UI:R); execution stays within the sandbox so scope is unchanged (S:U), matching Chrome's High rating.

3.1 AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

Primary rating from Vendor (google).

CVSS VectorVendor: google

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

3
CVSS changed
Oct 21, 2026 - 00:23 NVD
8.8 (HIGH)
Patch available
Oct 20, 2026 - 23:20 EUVD
CVE Published
Oct 20, 2026 - 22:19 cve.org
HIGH 8.8

DescriptionCVE.org

Use after free in ANGLE in Google Chrome on on Windows prior to 156.0.8078.47 allowed a remote attacker to execute arbitrary code inside the sandbox via a crafted HTML page. (Chromium security severity: High)

Executive ViewAI

Why It Matters

Google Chrome on Windows workstations across the organization are exposed to a memory-corruption flaw in the ANGLE graphics translation layer that can be triggered simply by an employee browsing to attacker-controlled web content, allowing code execution inside the browser's renderer sandbox. Because the payload is contained by the sandbox, a successful full compromise would require chaining this flaw with a separate sandbox-escape vulnerability, but browser bugs of this class are commonly used that way and the user interaction barrier is only a routine web visit. A vendor fix is already available, so the exposure is a fleet patch-management problem rather than an unsolved research risk.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.4%
Top 68% exploitable
Prevalence
Ubiquitous
Google Chrome is among the most widely deployed browsers worldwide
Data Quality
4 sources
Confidence: Medium

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.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.4%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Scheduled
Exploitation· derived
None
System Exposure· derived
Open
Automatable· derived
No
Human Impact
High

Priority Score

44
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +44
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

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.

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

CVE-2025-52691 CRITICAL POC
10.0 Dec 29

Unauthenticated remote code execution in SmarterTools SmarterMail lets an attacker upload arbitrary files to any locatio

CVE-2019-0803 HIGH POC
7.8 Apr 09

Windows Win32k fails to properly handle objects in memory, allowing local privilege escalation exploited in the wild in

CVE-2020-1472 MEDIUM POC
5.5 Aug 17

A privilege escalation vulnerability (CVSS 5.5). Risk factors: actively exploited (KEV-listed), EPSS 94% exploitation pr

CVE-2025-33053 HIGH POC
8.8 Jun 10

Windows Internet Shortcut Files (.url) contain an external control vulnerability (CVE-2025-33053, CVSS 8.8) that enables

CVE-2025-33073 HIGH POC
8.8 Jun 10

Windows SMB contains an improper access control vulnerability (CVE-2025-33073, CVSS 8.8) enabling authenticated attacker

CVE-2013-10047 CRITICAL POC
9.3 Aug 01

An unrestricted file upload vulnerability exists in MiniWeb HTTP Server <= Build 300 that allows unauthenticated remote

CVE-2012-10030 CRITICAL POC
9.3 Aug 05

FreeFloat FTP Server contains multiple critical design flaws that allow unauthenticated remote attackers to upload arbit

CVE-2025-34101 CRITICAL POC
9.3 Jul 10

Serviio Media Server versions 1.4 through 1.8 on Windows contain an unauthenticated command injection in the /rest/actio

CVE-2025-34095 CRITICAL POC
9.3 Jul 10

Mako Server versions 2.5 and 2.6 contain an unauthenticated OS command injection via the tutorial interface at examples/

CVE-2025-11953 CRITICAL POC
9.8 Nov 03

React Native Metro Development Server binds to external interfaces by default and contains an OS command injection endpo

CVE-2026-96951 HIGH POC
8.8 Oct 13

Command injection in the Windows Shell lets remote, unauthenticated attackers bypass a Windows security feature and then

CVE-2025-24054 MEDIUM POC
6.5 Mar 11

External control of file name or path in Windows NTLM allows an unauthorized attacker to perform spoofing over a network

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy