CVE-2024-8639Network attack vector

Heap corruption via Autofill use-after-free

Published Sep 11, 2024 · Updated Sep 13, 2024

Use-after-free in Google Chrome Autofill before 128.0.6613.137 allows remote attackers to corrupt heap memory with crafted HTML. The public record identifies Autofill but does not disclose the freed object, lifetime error, or responsible function because the Chromium issue is access-restricted. Exploitation requires user interaction with an attacker-controlled page; the published record bounds the result to browser heap corruption.

CVSS severity8.8
High
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Use-after-free in Google Chrome Autofill before 128.0.6613.137 allows remote attackers to corrupt heap memory with crafted HTML. The public record identifies Autofill but does not disclose the freed object, lifetime error, or responsible function because the Chromium issue is access-restricted. Exploitation requires user interaction with an attacker-controlled page; the published record bounds the result to browser heap corruption.

The record

CVE
CVE-2024-8639
Published
Sep 11, 2024
Updated
Sep 13, 2024
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2024Record 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 <128.0.6613.137
  2. Affected versionversion=128.0.6613.137 <128.0.6613.137

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=0 <128.0.6613.137; version=128.0.6613.137 <128.0.6613.137

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

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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