Security Digest · Vulnerability record · Known exploited
CVE-2024-4947: Google Chromium V8 Type Confusion Vulnerability
Exploited in the wild (CISA KEV). Type Confusion in V8 in Google Chrome prior to 125.0.6422.60 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page.
CISA KEV · added 2024-05-20 CVSS 9.6 Critical EPSS 15.2% · p97
Should you act?
Exploited: patch now if you run it
CISA has confirmed exploitation in the wild. This signal is computed from CISA KEV, EPSS and CVSS data; it is not an editorial verdict.
- Yes, if you run Google Chromium V8. CISA added this CVE to its Known Exploited Vulnerabilities catalog on 2024-05-20, which means there is reliable evidence of exploitation in the wild. US federal agencies must remediate by 2024-06-10; treat that as the outer limit, not the target.
- EPSS 15.2%, percentile 97: FIRST’s model estimates a 15.2% chance of exploitation activity in the next 30 days, higher than 97% of all scored CVEs (very high). EPSS is a probability, not a verdict.
- Needs a user to click or open something. Phishing makes that realistic, but it is not wormable.
What it is
Type Confusion in V8 in Google Chrome prior to 125.0.6422.60 allowed a remote attacker to execute arbitrary code inside a sandbox via a crafted HTML page. (Chromium security severity: High)
CISA’s summary
Google Chromium V8 contains a type confusion vulnerability that allows a remote attacker to execute code via a crafted HTML page.
Weakness type: CWE-843.
Product: Google Chromium V8 · Assigned by: Chrome · Published: 2024-05-15
Affected and fixed versions
| Vendor | Product | Affected versions (per CVE record) |
|---|---|---|
| Chrome | 125.0.6422.60 < 125.0.6422.60 |
Severity scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| CISA-ADP | 3.1 | 9.6 Critical | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H |
- Attack vector: network (remotely reachable)
- Attack complexity: low
- Privileges required: none (no login)
- User interaction: required (a user must click/open something)
- Scope: changed (can affect other components)
CVSS measures how bad a flaw is if exploited, not how likely exploitation is. Read it next to the exploitation data below.
Exploitation and urgency
- CISA KEV: added 2024-05-20; federal due date 2024-06-10. Known ransomware use: Unknown.
- CISA required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
- CISA SSVC assessment: exploitation active, automatable no, technical impact total.
- FIRST EPSS (model of 2026-10-21): 15.24% probability of exploitation activity in the next 30 days; percentile 97.
Timeline
- — CVE record published by Chrome
- — Added to CISA’s Known Exploited Vulnerabilities catalog
- — CISA remediation deadline for US federal agencies
- — CVE record last updated
Sources and references
Original sources first. Version and fix details should always be confirmed against the vendor or project advisory.
Vendor and project advisories, patches
- Listed in CISA KEV notes (chromereleases.googleblog.com) chromereleases.googleblog.com
Vulnerability records
- CVE.org record CVE-2024-4947 cve.org
- NVD entry CVE-2024-4947 nvd.nist.gov
Government
Other references from the CVE record and advisory
- issues.chromium.org issues.chromium.org
- lists.fedoraproject.org lists.fedoraproject.org
- lists.fedoraproject.org lists.fedoraproject.org
- lists.fedoraproject.org lists.fedoraproject.org
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