Is CVE-2025-6554 actively exploited?

Yes. CVE-2025-6554 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, which means exploitation in the wild has been confirmed.

Can CVE-2025-6554 be exploited remotely?

The attack vector of CVE-2025-6554 has not been classified yet.

What is the CVSS score of CVE-2025-6554?

CVE-2025-6554 has not received a CVSS score yet.

HOME VULNERABILITIESCVE-2025-6554

HIGHCISA KEVIN THE WILD

CVE-2025-6554

Published: July 2, 2025

EPSS:0.47%probability of exploitation in 30 daysPercentile:64.0th

Official Description

Google Chromium V8 contains a type confusion vulnerability that could allow a remote attacker to perform arbitrary read/write via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

NVD Source

CISA KEV Advisory

Google Chromium V8 Type Confusion Vulnerability

Added to KEV: 2025-07-02Federal patch deadline: 2025-07-23

Required Action (CISA)

Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.

Risk Analysis

A type confusion vulnerability in Google Chromium V8 allows remote attackers to perform arbitrary read/write operations via specially crafted HTML pages. This high-severity flaw affects multiple Chromium-based browsers and is actively exploited in the wild (KEV), making it a critical threat despite a low EPSS score.

This vulnerability is actively being exploited in the wild, as confirmed by its presence in CISA's KEV catalog. Exploitation can occur remotely via a crafted HTML page.

Recommended Action

Users of Chromium-based browsers such as Google Chrome, Microsoft Edge, and Opera should update their browsers immediately to the latest versions. Keeping web browsers updated is a primary defense against such remote exploitation.

Generated by the CTIWATCH analysis pipeline from this CVE's metadata (CVSS, EPSS, KEV status, exploit intelligence). Verify against vendor advisories before acting.

Technical Analysis

CVE-2025-6554 requires local access, meaning attackers must already have a foothold on the target system.

Exploitation requires some privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CISA has added CVE-2025-6554 to the Known Exploited Vulnerabilities (KEV) catalog, confirming active exploitation in the wild. U.S. federal agencies are required to patch this within the mandated timeframe, and all organizations should treat remediation as urgent.