CVEs / CVE-2025-6554
CVE-2025-6554: Google Chromium V8 Type Confusion Vulnerability
- Known exploited in the CISA KEV catalog since 2 Jul 2025
- high 8.1 CVSS 3.1 (from the CNA)
- EPSS 14.1% chance of exploitation in the next 30 days, higher than 96% of CVEs (30 Oct 2026)
- Last changed at its sources
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Summary
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.
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)
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Google Chrome | from 138.0.7204.96, before 138.0.7204.96 | 138.0.7204.96 |
Exploitation
| In CISA KEV since | 2 Jul 2025 |
|---|---|
| Due date for US federal agencies | 23 Jul 2025 |
| Used in ransomware campaigns | Unknown |
| Required action | Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable. |
Severity
| CVSS 3.1 | 8.1 highCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:NScored by the CNA (134c704f-9b21-4f2e-91b3-4a467353bcc0) |
|---|---|
| Weakness | CWE-843 |
References
- CVE-2025-6554 on NVD
- CVE-2025-6554 in the CISA KEV catalog
- https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.html?m=1 (cited by CISA)
- CVE-2025-6554 on OSV
- https://chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.html Vendor Advisory
- https://issues.chromium.org/issues/427663123 Permissions Required
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-6554 US Government Resource
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.