CVE-2024-3833Public exploitNetwork attack vector

Renderer code execution via duplicate WebAssembly properties

Published Apr 17, 2024 · Updated Feb 13, 2025

Object corruption in Google Chrome before 124.0.6367.60 allows remote attackers to execute code in the renderer via a crafted HTML page. WasmJs::InstallTypeReflection installs type properties on WebAssembly constructor prototypes without checking for existing properties, creating duplicates that corrupt V8 object layout. A user must visit a malicious page that activates the relevant origin trial; successful exploitation runs attacker code inside the renderer sandbox.

CVSS severity8.8
High
EPSS probability17.56%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Object corruption in Google Chrome before 124.0.6367.60 allows remote attackers to execute code in the renderer via a crafted HTML page. WasmJs::InstallTypeReflection installs type properties on WebAssembly constructor prototypes without checking for existing properties, creating duplicates that corrupt V8 object layout. A user must visit a malicious page that activates the relevant origin trial; successful exploitation runs attacker code inside the renderer sandbox.

The record

CVE
CVE-2024-3833
Published
Apr 17, 2024
Updated
Feb 13, 2025
Vendor
Fedora Project
Product
Fedora Linux
Classifications
CWE-374, T1203, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 13, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=38
  2. Affected versionversion=39
  3. Affected versionversion=40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fedora Project · Fedora Linuxversion=38; version=39; version=40
Google Cloud · Google Chromeversion=0 <124.0.6367.60; version=124.0.6367.60 <124.0.6367.60

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-374Passing Mutable Objects to an Untrusted Method
T1203Exploitation for Client Execution
T1189Drive-by Compromise

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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