CVE-2024-2176Public exploitNetwork attack vector

Heap corruption via FedCM use-after-free

Published Mar 6, 2024 · Updated Feb 13, 2025

A use-after-free in FedCM in Google Chrome before 122.0.6261.111 allows remote attackers to corrupt heap memory via a crafted HTML page. Google identifies the FedCM component but has not published the freed object, lifetime error, or stale access that causes the heap corruption. Exploitation requires a user to open the page; the public record does not establish whether the resulting corruption produces a crash or code execution.

CVSS severity8.8
High
EPSS probability1.26%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

A use-after-free in FedCM in Google Chrome before 122.0.6261.111 allows remote attackers to corrupt heap memory via a crafted HTML page. Google identifies the FedCM component but has not published the freed object, lifetime error, or stale access that causes the heap corruption. Exploitation requires a user to open the page; the public record does not establish whether the resulting corruption produces a crash or code execution.

The record

CVE
CVE-2024-2176
Published
Mar 6, 2024
Updated
Feb 13, 2025
Vendor
Fedora Project
Product
Fedora Linux
Classifications
CWE-416, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 6, 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=40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fedora Project · Fedora Linuxversion=40
Google Cloud · Google Chromeversion=0 <122.0.6261.111; version=122.0.6261.111 <122.0.6261.111

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-416Use After Free
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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