CISA KEV · Known exploitedHigh

CVE-2025-6554

Google Chromium V8

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
8.1
EPSS
8.63%
94.6% percentile
CISA KEV
Listed
Published
2025.07.01
PRIORITY ASSESSMENT

Immediate review

CISA has listed this vulnerability in the Known Exploited Vulnerabilities catalog.

Known exploitationConfirmed by CISA KEV
Exploit probability8.63%
Technical severityCVSS 8.1

Vulnerability overview

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 product and versions

Product
Google Chromium V8
Affected versions
138.0.7204.96, < 138.0.7204.96, < 138.0.7204.92
Fixed versions
138.0.7204.96, 138.0.7204.92

Recommended response sequence

Confirm exposure before applying a vendor-supported change.

Full remediation guide
CISA 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.

Due date: 2025.07.23
  1. 1
    Identify

    Confirm that Google Chromium V8 and an affected version are present.

  2. 2
    Prioritize

    Combine exploitation signals with asset exposure and business criticality.

  3. 3
    Remediate

    Follow the vendor advisory or supported update path and preserve rollback options.

  4. 4
    Verify

    Recheck the version, service health, access paths, and relevant logs.

Technical data

CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
CWE
CWE-843
KEV added
2025.07.02
Ransomware use
미확인
CVE-2025-6554 — Google Chromium V8 | SECUFOCUS NOW