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CVE-2025-6554

Google Chromium V8 Type Confusion

8.1 HIGHActively exploited (CISA KEV)EPSS 14.1%
  1. Published30 Jun 2025
  2. Added to CISA KEV2 Jul 2025
  3. Remediation due23 Jul 2025
Actively exploited (CISA KEV)

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.

Added to KEV: 2 Jul 2025Federal remediation due: 23 Jul 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)

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionRequired
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

Affected products

Google Chrome< 138.0.7204.92 · < 138.0.7204.96

Remediation

Fixed in
Google Chrome≥ 138.0.7204.92

References

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Frequently asked

Is CVE-2025-6554 being actively exploited?

Yes. CVE-2025-6554 is listed in the CISA Known Exploited Vulnerabilities (KEV) catalog, added 2 Jul 2025.

How severe is CVE-2025-6554?

CVE-2025-6554 has a CVSS 3.1 base score of 8.1, rated high. EPSS estimates a 14.1% probability of exploitation.

Which products are affected by CVE-2025-6554?

Affected products include Google Chrome.

How do I fix CVE-2025-6554?

Upgrade affected software to a fixed version, for example Google Chrome 138.0.7204.92 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-6554 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. Because it is on the CISA KEV list, a risk for it never ranks below high, and the update that fixes it moves to the Emergency patch lane. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.