CVE-2025-6554

Published Jun 30, 2025

Last updated 8 months ago

Google Chrome V8

Zero-day

Overview

AI description

Automated description summarized from trusted sources.

CVE-2025-6554 is a type confusion vulnerability found in the V8 JavaScript engine, which is used in Chrome and other Chromium-based browsers. This vulnerability can be exploited by remote, unauthenticated attackers by serving crafted HTML pages to targeted users. If successful, the attacker can trick V8 into misinterpreting memory types, potentially leading to arbitrary read/write operations. In some scenarios, this could allow for full remote code execution. Google is aware that the vulnerability is being actively exploited in the wild. A security update has been released for Chrome to address this zero-day vulnerability. The vulnerability was discovered by Clément Lecigne of Google's Threat Analysis Group (TAG) on June 25, 2025.

Description: 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)
Source: chrome-cve-admin@google.com
NVD status: Modified
Products: chrome

Risk scores

CVSS 3.1

Type: Secondary
Base score: 8.1
Impact score: 5.2
Exploitability score: 2.8
Vector string: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Severity: HIGH

Known exploits

Data from CISA

Vulnerability name: Google Chromium V8 Type Confusion Vulnerability
Exploit added on: Jul 2, 2025
Exploit action due: Jul 23, 2025
Required action: Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Weaknesses

chrome-cve-admin@google.com: CWE-843

Hype score: Not currently trending

Configurations

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References

Sources include official advisories and independent security research.