CVE-2024-4059Network attack vector

Cross-site data disclosure via V8 out-of-bounds read

Published May 1, 2024 · Updated Nov 4, 2025

Out-of-bounds read in Google Chrome's V8 API before 124.0.6367.78 allows remote attackers to leak cross-site data via crafted HTML. The V8 API reads beyond an intended memory boundary when processing attacker-controlled page content; Google has not disclosed the affected API operation. A user must load the crafted page, and the documented consequence is cross-site data disclosure rather than data modification or service interruption.

CVSS severity6.5
Medium
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Out-of-bounds read in Google Chrome's V8 API before 124.0.6367.78 allows remote attackers to leak cross-site data via crafted HTML. The V8 API reads beyond an intended memory boundary when processing attacker-controlled page content; Google has not disclosed the affected API operation. A user must load the crafted page, and the documented consequence is cross-site data disclosure rather than data modification or service interruption.

The record

CVE
CVE-2024-4059
Published
May 1, 2024
Updated
Nov 4, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-125, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 1, 2024CVE publishedPublication date reported by the CVE source.
  2. Nov 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=124.0.6367.78 <124.0.6367.78

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=124.0.6367.78 <124.0.6367.78

Published CVSS scores

6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-125Out-of-bounds Read
T1189Drive-by Compromise

Public exploit references

No public exploit references are available in this record.

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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