CVE-2025-6554
Google Chromium V8 Type Confusion Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 23 July 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
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
- 8.1 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- EPSS
- 14.14% probability · 97th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 2 July 2025 · due 23 July 2025
- Weakness
- CWE-843
- Affected
- google/chrome
- Source
- chrome-cve-admin@google.com
EPSS moved from 14.1% on 2 October 2026 to 14.1% on 30 October 2026. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”.
CISA notes
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.html?m=1 ; https://nvd.nist.gov/vuln/detail/CVE-2025-6554
References
- https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.htmlVendor Advisory
- https://issues.chromium.org/issues/427663123Permissions Required
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6554US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.