Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessLure victim to malicious page
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DeliveryServe crafted JS triggering type confusion
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ExploitCorrupt renderer memory via mismatched object type
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ExecutionAchieve code execution in renderer
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ImpactExfiltrate data or stage sandbox escape
Vulnerability Assessment
| Weakness |
CWE
ASVS 5.0
V15 - Secure Coding and Architecture Type safety enforcement
MITRE ATT&CK
1 technique across 1 tactic: Execution 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 load attacker-controlled web content in a vulnerable Chrome build prior to 154.0.8037.57 (Stable channel, September 2026) - the UI:R metric means user interaction (visiting/rendering a malicious page) is mandatory, which limits mass automation compared to a zero-click bug. No authentication or elevated privileges are needed (PR:N), and no non-default configuration is implied. Scope is unchanged (S:U), so the initial code execution is contained within the renderer process sandbox; full host compromise would require chaining an additional sandbox-escape vulnerability. The primary limiting factor beyond patch availability is the need to drive a target to malicious content. |
| Impact | This is a genuine high-priority issue. The CVSS 3.1 vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, 8.8) describes a type-confusion flaw (CWE-843) reachable over the network with low complexity and no privileges, requiring only that a victim load attacker-controlled web content (UI:R) - the classic Chrome drive-by profile. The uniform C:H/I:H/A:H impact triad is characteristic of memory-corruption bugs that yield renderer code execution rather than mere data leakage. Signals are largely absent rather than conflicting: no EPSS score, no CISA KEV entry, and no public PoC are provided, so there is no confirmed active exploitation - treat this as 'no public exploit identified at time of analysis.' The 'Information Disclosure' tag conflicts with the vector (I:H and A:H indicate full compromise, not read-only disclosure) and should be discounted; the 'Memory Corruption' tag is consistent with CWE-843. A vendor patch is available (fixed build 154.0.8037.57), which is the decisive risk-reducer. Given Chrome's ubiquity and the historical rate at which type-confusion bugs are weaponized post-disclosure, this warrants prompt patching despite the missing exploitation telemetry. |
| Exploit ScenarioDerived | An attacker hosts or compromises a web page containing JavaScript that triggers the type-confusion condition in the affected Chrome component. A victim running a pre-154.0.8037.57 build simply visits the page (UI:R), causing the renderer to misinterpret an object's type and corrupt memory, giving the attacker a code-execution primitive inside the renderer sandbox. No public PoC is currently identified, and exploitation would typically be chained with a sandbox escape for full host compromise. |
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Alert meAnalysisAIv3 – Sep 29, 2026
Type confusion in Google Chrome builds prior to 154.0.8037.57 lets a remote attacker who convinces a victim to load attacker-controlled web content corrupt memory inside the renderer and potentially achieve code execution in that process. The flaw is rated CVSS 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H, CWE-843), meaning no authentication or privileges are required but exploitation is not zero-click: the victim must render a malicious page, and because scope is unchanged the initial compromise is confined to the renderer sandbox unless chained with a separate sandbox escape. No public exploit code has been identified at time of analysis and the issue is not listed as confirmed actively exploited (CISA KEV); a vendor-released patch is available in Chrome 154.0.8037.57.
Earlier versions of this analysis (2)
Type confusion (CWE-843) in Google Chrome desktop builds prior to 154.0.8037.57 allows a remote, unauthenticated attacker to trigger memory corruption and potentially achieve arbitrary code execution within the browser's renderer process, rated CVSS 3.1 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H). Exploitation requires the victim to visit or render an attacker-controlled web page (UI:R), which is the primary limiting factor; no credentials or special configuration are needed, and default Chrome installations are affected. No public exploit code or confirmed active exploitation was identified at time of analysis, and EPSS/K EV data was not supplied; the vendor has published a stable-channel update addressing the flaw, and because scope is unchanged (S:U), any code execution is confined to the sandboxed renderer and would require a separate sandbox escape to compromise the host.
Google Chrome desktop (stable channel) is addressed by a vendor-published security fix referenced in the Chrome Releases stable-channel update and tracked as CVE-2026-95380. The available intelligence contains no vulnerability description, no CVSS score or vector, no CWE mapping, no EPSS probability and no CISA KEV entry, so the specific weakness, its severity and its preconditions cannot be characterized from the input supplied. There is no public exploit identified at time of analysis; the only confirmed signal is that a vendor patch is available and Chrome's automatic update mechanism should already deliver it to fully patched installations.
RemediationAI
Apply the vendor-released patch by upgrading Google Chrome to 154.0.8037.57 or later - desktop users can force the update from chrome://settings/help and must fully restart the browser (a background download alone leaves the vulnerable binary running); enterprise fleets should push the fixed build via their software management or Chrome Browser Cloud Management policies, and Linux users of distribution packages should update google-chrome/chromium through their package manager once the rebased 154.0.8037.57 package is available. The vendor advisory is at http://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0856730748.html. Because no public exploit code has been identified at time of analysis, there is no emergency workaround requirement, but if immediate patching is impossible, compensating controls include enforcing Chrome Site Isolation (limits cross-site renderer reach), blocking untrusted or uncategorized web content through enterprise URL filtering and secure web gateway policies (only effective against non-targeted delivery and adds user friction), disabling the JavaScript JIT or running with Strict Site Isolation and reduced-rendering features (measurable performance cost on script-heavy applications), and containing exposure by treating browser compromise as renderer-scoped and ensuring endpoint detection covers process-level anomalies that would indicate a chained sandbox escape. None of these mitigations remove the underlying type-confusion flaw, so patching to 154.0.8037.57 remains the only complete fix; defenders should also note that absent KEV confirmation, prioritization is driven by the high CVSS impact and universal client exposure rather than observed exploitation.
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
CWE-843 (Type Confusion) is a memory-safety class in which code operates on an object believing it to be of a different, incompatible type; the mismatched field layout or vtable then produces out-of-bounds reads/writes, which is why this CVE carries both the Information Disclosure and Memory Corruption tags. In Chromium this class of bug typically lives in the JavaScript engine or layout/blink layer, where an attacker-supplied script triggers the confused access, converts it into a controlled read/write primitive inside the renderer, and pivots to arbitrary code execution in that process. The assessed vector (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H) confirms remote, low-complexity exploitation with no credentials, but the UI:R metric and unchanged scope (S:U) mean the attacker must drive the victim to attacker-controlled content and the resulting code execution stays inside the Chromium renderer sandbox, so full host compromise requires a second, chained sandbox-escape vulnerability. The issue is tracked as Chromium issue 534579660 and was addressed in the Chrome Stable channel update published on the Chrome Releases blog; the fix was also carried by the Ubuntu Chrome package maintainers, indicating Linux desktop packaging was updated as well.
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Severity by source
Sources disagree (Low–Critical)AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Network-reachable type confusion triggered by a malicious page with no privileges but required user interaction; renderer-contained (S:U) with full memory-corruption impact yielding C/I/A:H.
vuln.today treats the vendor’s rating as authoritative. A higher third-party CVSS (e.g. CISA-ADP) is shown for transparency but does not drive the headline severity.
CVSS VectorVendor: vendor:ubuntu
Lifecycle Timeline
2DescriptionCVE.org
[Unknown description]
Executive ViewAI
A memory-corruption flaw in Google Chrome versions prior to 154.0.8037.57 allows an attacker to execute code inside the browser's renderer process simply by getting an employee to open a crafted web page. Because Chrome is deployed enterprise-wide and web browsing is unavoidable, the exposure surface spans essentially every workstation in the organization; a successful compromise is confined to the renderer sandbox unless the attacker chains an additional escape, which materially limits - but does not eliminate - the risk of full endpoint takeover. A vendor fix is already available, making this a straightforward patch-management obligation rather than an active incident.
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
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.
Use-after-free vulnerability in the DisplayObject class in the ActionScript 3 (AS3) implementation in Adobe Flash Player
V8 in Google Chrome prior to 54.0.2840.90 for Linux, and 54.0.2840.85 for Android, and 54.0.2840.87 for Windows and Mac
Type confusion in V8 in Google Chrome prior to 59.0.3071.86 for Linux, Windows, and Mac, and 59.0.3071.92 for Android, a
The Array.prototype.concat implementation in builtins.cc in Google V8, as used in Google Chrome before 49.0.2623.108, do
Mozilla Firefox before 18.0, Firefox ESR 10.x before 10.0.12 and 17.x before 17.0.2, Thunderbird before 17.0.2, Thunderb
Incorrect handling of complex species in V8 in Google Chrome prior to 57.0.2987.98 for Linux, Windows, and Mac and 57.0.
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 16.0, Firefox ESR 10.x before 10.0.8, Thunderbi
An issue was discovered in the Cisco WebEx Extension before 1.0.7 on Google Chrome, the ActiveTouch General Plugin Conta
The XrayWrapper implementation in Mozilla Firefox before 35.0 and SeaMonkey before 2.32 does not properly interact with
The Chrome Object Wrapper (COW) implementation in Mozilla Firefox before 18.0, Firefox ESR 17.x before 17.0.2, Thunderbi
The Web IDL implementation in Mozilla Firefox before 28.0, Firefox ESR 24.x before 24.4, Thunderbird before 24.4, and Se
Use-after-free vulnerability in the BitmapData class in the ActionScript 3 (AS3) implementation in Adobe Flash Player 13
Same technique Memory Corruption
View allVendor StatusVendor
SUSE
Severity: Critical| Product | Status |
|---|---|
| SUSE Package Hub 15 SP7 | Fixed |
| openSUSE Leap 16.0 | Fixed |
| openSUSE Tumbleweed | Fixed |
| SUSE Package Hub 15 SP7 | Affected |
EUVD-2026-89163
GHSA-jg8h-8x8f-7qxm
NVD
CVE.org
EPSS
Exploit-DB