CVE-2024-3159Network attack vector

Arbitrary memory read and write via crafted HTML

Published Apr 6, 2024 · Updated Nov 4, 2025

Out-of-bounds memory access in V8 in Google Chrome before 123.0.6312.105 allows remote attackers to read and write memory via crafted HTML. Google has not published the exact V8 code locus or the invalid bounds operation responsible for the memory access. Reaching the flaw requires a user to load attacker-controlled HTML, after which the browser process can expose or alter memory within its security context.

CVSS severity8.8
High
EPSS probability1.61%
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 memory access in V8 in Google Chrome before 123.0.6312.105 allows remote attackers to read and write memory via crafted HTML. Google has not published the exact V8 code locus or the invalid bounds operation responsible for the memory access. Reaching the flaw requires a user to load attacker-controlled HTML, after which the browser process can expose or alter memory within its security context.

The record

CVE
CVE-2024-3159
Published
Apr 6, 2024
Updated
Nov 4, 2025
Vendor
Fedora Project
Product
Fedora Linux
Classifications
CWE-125, CWE-119, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 6, 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=40

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Fedora Project · Fedora Linuxversion=40
Google Cloud · Google Chromeversion=0 <123.0.6312.105; version=123.0.6312.105 <123.0.6312.105

Published CVSS scores

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-125Out-of-bounds Read
CWE-119Improper Restriction of Operations within the Bounds of a Memory Buffer
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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