8.1

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

CVSS: 8.1v3.1HighKEVAnalyzed
AliasesDEBIAN-CVE-2025-6554DSA-5955-1CGA-2759-x3jp-cmr6
Published 30-06-2025Last modified 21-10-2025
Open JSON

Vulnerability summary

CVE-2025-6554 is a high (CVSS 8.1) Type Confusion vulnerability in Google Chromium V8. It is known to be exploited: CISA lists it, first on 02-07-2025. EPSS estimates a 14.14% chance of exploitation in the next 30 days, higher than 96.5% of scored vulnerabilities.

Overall risk
85/100
0100
Critical · default modelHow is this calculated?
CVSS score
8.1/10
010
High · v3.1 (CVE.org)
EPSS score
14.14%
0%100%
Medium · +1.58 pp in 30 days
KEVListedCISA
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 1 · Related 2
OPENSUSE-SU-2025:15210-1CGA-M534-XJ5F-7PP4

Timeline

  1. 30-06-2025
    PublishedVulnerability first disclosed.
  2. 02-07-2025
    Added to CISA KEVGoogle Chromium V8 Type Confusion Vulnerability
  3. 23-07-2025
    CISA remediation dueApply mitigations per vendor instructions.
  4. 21-10-2025
    Last modifiedVulnerability information updated.

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 metrics

5 scores · 5 sources · 1 version

EPSS trend

Probability

14.14%

Chance of exploitation in the next 30 days

Percentile

97%

Versus all other CVEs

30-day change

+1.58 pp

From 12.56% on 21-09-2026

21-09-202621-10-2026
EPSS score
14.14%

Known exploited

Compare KEV catalogs
CISA KEVListed
Added
02-07-2025
Federal due date
23-07-2025

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. chromereleases.googleblog.com/2025/06/stable-channel-update-for-desktop_30.html?m=1 nvd.nist.gov/vuln/detail/CVE-2025-6554

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Chainguard1 product
  • chromium< 138.0.7204.92-r0
Debian1 product
  • chromium< 138.0.7204.92-1 | < 138.0.7204.92-1~deb12u1
Google1 product
  • chrome≥ 138.0.7204.96, < 138.0.7204.96 | < 138.0.7204.96 | < 138.0.7204.92
Wolfi1 product
  • chromium< 138.0.7204.92-r0

4 vendors · 4 products

References

4 links