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Vulnerability ID

CVE-2026-87630

Read memory inside the sandbox via integer overflow in WebRTC

ProductChrome

CVSS 3.1Medium4.3

EPSS0.26%

Has public PoCNo

AI Exploitability

No working AI exploit yet

Working AI PoC: Not yet
Cheapest run: $9.84
Fastest run: —

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Model Matrix Capability Breakdown Vulnerability Details Timeline Community

Overview

Integer overflow in WebRTC in Google Chrome prior to 153.0.8010.36 allowed a remote attacker to read memory inside the sandbox via a crafted HTML page. (Chromium security severity: Medium)

CWE: CWE-190
Weakness: Integer Overflow or Wraparound
Component: WebRTC
Impact: Read memory inside the sandbox
Published: 2026-09-09
Fixed version: 153.0.8010.36

Risk factors

In-the-WildNot observed

CISA KEVNot listed

Public ExploitNone known

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:L/I:N/A:N

Exploitability

Attack VectorNetwork

ComplexityLow

Privileges RequiredNone

User InteractionRequired

Impact

ConfidentialityLow

IntegrityNone

AvailabilityNone

EPSS

Chance of exploitation in the next 30 days

0.26%

SSVC

Stakeholder-specific vulnerability categorization

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