# CVE-2025-6554: Google Chromium V8 Type Confusion Vulnerability

- Exploited (CISA KEV): yes, added 2025-07-02
- Published: 2025-06-30
- CVSS: 8.1 HIGH (v3.1)
- EPSS: 14.1% (97th percentile)
- CWE: CWE-843

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)

## Edge WAF coverage (claimed by vendors, not measured)

| Vendor | Status | First rule | Days after publication |
|---|---|---|---|
| Cloudflare | No public claim | — | — |
| AWS | No public claim | — | — |
| Microsoft Azure | No public claim | — | — |
| Google Cloud | No public claim | — | — |
| Fastly | Before feed history | — | — |
| F5 | No public claim | — | — |
| Akamai | No public source | — | — |
| OWASP CRS | No public claim | — | — |

"No public claim" means no vendor statement names this CVE; "Before feed history" means the CVE is older than the vendor feed. In both cases generic rules may still block it.

HTML: https://cve.vigilbase.com/cve/CVE-2025-6554 · JSON: https://cve.vigilbase.com/api/v1/cves/CVE-2025-6554