CVE-2023-4428Network attack vector

Memory disclosure via crafted CSS content

Published Aug 22, 2023 · Updated Jul 1, 2025

Out-of-bounds read in Google Chrome before 116.0.5845.110 allows remote attackers to read process memory via a crafted HTML page. Google identifies the CSS component but has not published the exact code locus or bounds-checking error that permits the read. A user must load the crafted page; the published record establishes memory disclosure but does not specify how the separate availability impact manifests.

CVSS severity8.1
High
EPSS probability11.26%
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 read in Google Chrome before 116.0.5845.110 allows remote attackers to read process memory via a crafted HTML page. Google identifies the CSS component but has not published the exact code locus or bounds-checking error that permits the read. A user must load the crafted page; the published record establishes memory disclosure but does not specify how the separate availability impact manifests.

The record

CVE
CVE-2023-4428
Published
Aug 22, 2023
Updated
Jul 1, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-125, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 22, 2023CVE publishedPublication date reported by the CVE source.
  2. Jul 1, 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=116.0.5845.110 <116.0.5845.110

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=116.0.5845.110 <116.0.5845.110

Published CVSS scores

8.1CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/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-125Out-of-bounds Read
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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