CVE-2024-5839Network attack vector

Heap corruption via crafted HTML page

Published Jun 11, 2024 · Updated Feb 13, 2025

Inappropriate memory allocation in Google Chrome before 126.0.6478.54 allows remote attackers to trigger heap corruption via crafted HTML. Google identifies the Memory Allocator as the affected locus but has not disclosed the inconsistent operation that mishandles page-controlled input. A user must load the crafted page; the public record establishes heap corruption but does not establish code execution or a specific confidentiality impact.

CVSS severity8.8
High
EPSS probability0.49%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Inappropriate memory allocation in Google Chrome before 126.0.6478.54 allows remote attackers to trigger heap corruption via crafted HTML. Google identifies the Memory Allocator as the affected locus but has not disclosed the inconsistent operation that mishandles page-controlled input. A user must load the crafted page; the public record establishes heap corruption but does not establish code execution or a specific confidentiality impact.

The record

CVE
CVE-2024-5839
Published
Jun 11, 2024
Updated
Feb 13, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-474, T1203, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 11, 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=0 <126.0.6478.54
  2. Affected versionversion=126.0.6478.54 <126.0.6478.54

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=0 <126.0.6478.54; version=126.0.6478.54 <126.0.6478.54

Published CVSS scores

8.8CISA-ADPCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

CWE-474Use of Function with Inconsistent Implementations
T1203Exploitation for Client Execution
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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