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Vulnerability ID

CVE-2025-6554

Perform arbitrary read/write via type confusion in V8

ProductChrome

CVSS 3.1High8.1

EPSS14.14%

Has public PoCNo

AI Exploitability

No working AI exploit yet

Working AI PoC: Not yet
Cheapest run: $12.48
Fastest run: —

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

Type confusion in V8 in Google Chrome prior to 138.0.7204.96 allowed a remote attacker to perform arbitrary read/write via a crafted HTML page. (Chromium security severity: High)

CWE: CWE-843
Weakness: Access of Resource Using Incompatible Type ('Type Confusion')
Component: V8
Impact: Perform arbitrary read/write
Published: 2025-06-30
Fixed version: 138.0.7204.92

Risk factors

In-the-WildObserved

CISA KEVListed

Public ExploitNone known

Ransomware useNone known

Severity

CVSS 3.1Only version published

8.1High

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Exploitability

Attack VectorNetwork

ComplexityLow

Privileges RequiredNone

User InteractionRequired

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityNone

EPSS

Chance of exploitation in the next 30 days

14.14%

SSVC

Stakeholder-specific vulnerability categorization

Not scored. CISA publishes an SSVC decision for a subset of CVEs.