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Vulnerability ID

CVE-2025-9479

Potentially exploit heap corruption via out-of-bounds read in V8

ProductChrome

CVSS 3.1Medium4.3

EPSS0.20%

Has public PoCYes

AI Exploitability

No working AI exploit yet

Working AI PoC: Not yet
Cheapest run: $25.55
Fastest run: 1.8 hr

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

Out of bounds read in V8 in Google Chrome prior to 133.0.6943.141 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page. (Chromium security severity: Medium)

CWE: CWE-125
Weakness: Out-of-bounds Read
Component: V8>Turboshaft
Impact: Potentially exploit heap corruption
Published: 2025-11-14
Fixed version: 133.0.6943.141

Risk factors

In-the-WildNot observed

CISA KEVNot listed

Public ExploitAvailable

Ransomware useNone known

Severity

CVSS 3.1Only version published

4.3Medium

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

Exploitability

Attack VectorNetwork

ComplexityLow

Privileges RequiredNone

User InteractionRequired

Impact

ConfidentialityNone

IntegrityNone

AvailabilityLow

EPSS

Chance of exploitation in the next 30 days

0.20%

SSVC

Stakeholder-specific vulnerability categorization

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