CVE-2024-4559Network attack vector

Heap corruption via WebAudio buffer overflow

Published May 7, 2024 · Updated Feb 13, 2025

Heap buffer overflow in WebAudio in Google Chrome before 124.0.6367.155 allows remote attackers to corrupt heap memory via crafted HTML. WebAudio writes beyond a heap buffer while processing attacker-controlled page content; Google has kept the detailed bug record restricted. A user must open the crafted page, and public records do not disclose whether the resulting corruption causes a browser crash or code execution.

CVSS severity6.5
Medium
EPSS probability1.19%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Heap buffer overflow in WebAudio in Google Chrome before 124.0.6367.155 allows remote attackers to corrupt heap memory via crafted HTML. WebAudio writes beyond a heap buffer while processing attacker-controlled page content; Google has kept the detailed bug record restricted. A user must open the crafted page, and public records do not disclose whether the resulting corruption causes a browser crash or code execution.

The record

CVE
CVE-2024-4559
Published
May 7, 2024
Updated
Feb 13, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-122, CWE-787, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 7, 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

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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=124.0.6367.155
  2. Affected versionversion=124.0.6367.155 <124.0.6367.155

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=124.0.6367.155; version=124.0.6367.155 <124.0.6367.155

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
6.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/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-122Heap-based Buffer Overflow
CWE-787Out-of-bounds Write
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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