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Google Chrome EUVDEUVD-2026-50915

| CVE-2026-17989 HIGH
Access of Resource Using Incompatible Type (Type Confusion) (CWE-843)
2026-07-30 Chrome GHSA-vc8g-6cm2-mwx5
High
Disputed · 8.8 Vendor: Chrome
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Attack ChainAIDerived

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

  1. Access
    Lure victim to malicious site
  2. Delivery
    Deliver crafted HTML/JS page
  3. Exploit
    Trigger V8 type confusion
  4. Execution
    Execute arbitrary code in renderer sandbox
  5. Impact
    Chain sandbox escape for host impact

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 open a specially crafted HTML/JavaScript page in a vulnerable Chrome build (prior to 151.0.7922.72) - the CVSS UI:R and the description ('via a crafted HTML page') confirm mandatory user interaction; no authentication or elevated privileges are needed (PR:N). The key limiting factor is that code execution is confined to the renderer sandbox (scope Unchanged, description states 'inside a sandbox'), so host-level compromise requires an additional, separate sandbox-escape vulnerability that this CVE does not provide. Exploitation is further limited by V8 exploit fragility (type-confusion primitives are version- and build-specific) and by Chrome's default auto-update shrinking the window of vulnerable installs.

Impact

The signals are mixed and worth separating. CVSS 3.1 rates this 8.8 (AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H): network-reachable, low complexity, no privileges, but requiring user interaction (visiting a page) and with scope Unchanged. The Unchanged scope and the description's explicit 'inside a sandbox' wording are the key nuance - code execution is confined to the renderer sandbox and would still need a separate sandbox-escape chain to compromise the host, which is why Chromium labels the severity Low despite the high numeric CVSS. CISA's SSVC framework reinforces a lower urgency: Exploitation 'none', Automatable 'no', Technical Impact 'total'. There is no KEV listing and no POC, so this is currently a serious memory-safety bug without evidence of active exploitation. Given Chrome's ubiquity and V8's historical value in exploit chains, it should be patched promptly through normal browser-update cadence, but it is not a drop-everything emergency absent exploitation signals.

Exploit ScenarioDerived

An attacker hosts a malicious web page containing crafted JavaScript and lures a Chrome user to visit it via phishing, a malicious ad, or a compromised site. When the page loads, the JavaScript triggers the V8 type confusion to gain arbitrary code execution inside the renderer sandbox, positioning the attacker to chain a subsequent sandbox-escape bug for full host compromise. No public proof-of-concept is identified at time of analysis.

This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 30, 2026

Arbitrary code execution in Google Chrome's V8 JavaScript engine allows a remote attacker to run code inside the renderer sandbox when a victim visits a crafted HTML page, affecting all desktop builds prior to 151.0.7922.72. The flaw is a CWE-843 type confusion in V8 and carries a CVSS 8.8 due to network reach and high CIA impact, though execution is confined to the sandbox and Chromium rates the security severity as Low. There is no public exploit identified at time of analysis and it is not listed in CISA KEV, but a vendor patch is available.

RemediationAI

Vendor-released patch: update Google Chrome to 151.0.7922.72 or later via the Stable Channel update described at https://chromereleases.googleblog.com/2026/07/stable-channel-update-for-desktop_0887107924.html; Chrome normally auto-updates, so ensure the browser has been fully relaunched to apply the new binary and verify the version under chrome://settings/help. In managed environments, push the update through your existing browser management (Google Admin Console policy, SCCM/Intune, or package repo) and force a restart to complete installation. If patching must be delayed, the practical compensating control is to keep Chrome's site isolation and sandbox enabled (default) and restrict browsing to trusted sites, since exploitation requires the user to load a malicious HTML page; note this only reduces exposure and does not remove the flaw. Users of other Chromium-based browsers should apply their vendor's corresponding V8 update once released.

Affected VersionsENISA

Chrome 151.0.7922.72 <151.0.7922.72

Affected Packages

euvd chrome fix: 151.0.7922.72

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 vulnerability lives in V8, the just-in-time-compiling JavaScript/WebAssembly engine that powers Chrome and every Chromium-derived browser. CWE-843 (Type Confusion) occurs when the engine allocates or interprets an object as one type while it is actually another, typically through optimizer or garbage-collector edge cases that let attacker-controlled JavaScript violate V8's internal type assumptions. This yields arbitrary read/write primitives in the renderer's address space and ultimately code execution within that process. The single CPE provided, cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*, confirms the affected component is the Chrome desktop application itself; because the same V8 code is shared, downstream Chromium browsers (Edge, Brave, Opera, Vivaldi) are typically affected until they rebase on the fixed V8.

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Severity by source

Sources disagree (Low–Critical)
Vendor (Chrome) 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 needs no privileges but requires the user to visit it (UI:R); scope stays Unchanged because code runs confined within the renderer sandbox.

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
SUSE CRITICAL
Red Hat 4.3 LOW

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: Chrome

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

Lifecycle Timeline

3
Patch available
Jul 30, 2026 - 02:02 EUVD
CVE Published
Jul 30, 2026 - 00:25 cve.org
UNKNOWN (no severity yet)
CVE Published
Jul 30, 2026 - 00:25 cve.org
HIGH 8.8

DescriptionCVE.org

Type Confusion in V8 in Google Chrome prior to 151.0.7922.72 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: Low)

Executive ViewAI

Why It Matters

A remote code execution vulnerability in Google Chrome's V8 JavaScript engine (CVE-2026-17989) affects all desktop versions prior to 151.0.7922.72, with no public exploit identified at time of analysis. Users are at risk when visiting attacker-controlled websites, potentially enabling data exfiltration, credential theft, and lateral network access from compromised endpoints. Vendor patch version 151.0.7922.72 or later is available and should be deployed urgently to eliminate this attack surface.

Business Impact: High
Compensating Controls

Apply vendor patch.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Prevalence
Ubiquitous
Chrome is the most widely deployed desktop browser worldwide
Data Quality
6 sources
Confidence: High

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 0.2%
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
Scheduled
Exploitation
None
System Exposure· derived
Open
Automatable
No
Human Impact
High
Technical Impact
Total

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

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.

Vendor StatusVendor

SUSE

Severity: Critical
Product Status
SUSE Package Hub 15 SP7 Fixed
openSUSE Leap 16.0 Fixed
SUSE Package Hub 15 SP7 Affected

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