CVE-2025-6554
KEVGoogle Chromium V8 Type Confusion Vulnerability
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.
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NPublishedJun 30, 2025
Last modifiedJun 17, 2026
Added to KEVJul 2, 2025
Remediation dueJul 23, 2025
References
- chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.htmlVendor Advisory
- issues.chromium.org/issues/427663123Permissions Required
- cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6554US Government Resource
0 recent articles mention this CVE
72
Risk assessment · High
Actively exploited. Patch immediately.
- Exploitation
- Confirmed in the wild (CISA KEV)
- Federal remediation deadline
- Overdue by 460 days
- CVSS
- 8.1 HIGH
- EPSS (30-day exploit probability)
- 14.1% · top 3% of all CVEs
- Weakness
- CWE-843
- Attack vector
- Network, remotely reachable
Recommended actions
- 1.Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
- 2.Treat as emergency change: patch or isolate internet-facing instances first.
- 3.Review exposure: confirm which instances are reachable from the internet and restrict access until patched.
- 4.Hunt for compromise: review logs for the disclosure window, not just from the patch date.
Assessment is derived automatically from the live signals above; verify against your own asset inventory.