CVE-2023-4073Network attack vector

Remote heap corruption via ANGLE bounds error

Published Aug 3, 2023 · Updated Feb 13, 2025

Out-of-bounds memory access in ANGLE in Google Chrome on Mac before 115.0.5790.170 allows remote attackers to corrupt heap via crafted HTML. ANGLE performs an out-of-bounds memory operation while processing attacker-supplied page content, potentially corrupting browser heap memory. A remote attacker needs a victim to load the crafted page; successful exploitation can affect confidentiality, integrity, and availability, while the published record does not establish code execution.

CVSS severity8.8
High
EPSS probability1.23%
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 ANGLE in Google Chrome on Mac before 115.0.5790.170 allows remote attackers to corrupt heap via crafted HTML. ANGLE performs an out-of-bounds memory operation while processing attacker-supplied page content, potentially corrupting browser heap memory. A remote attacker needs a victim to load the crafted page; successful exploitation can affect confidentiality, integrity, and availability, while the published record does not establish code execution.

The record

CVE
CVE-2023-4073
Published
Aug 3, 2023
Updated
Feb 13, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-119, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 3, 2023CVE 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=115.0.5790.170 <115.0.5790.170

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=115.0.5790.170 <115.0.5790.170

Published CVSS scores

8.8NVDCVSS: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 exploitUnconfirmed

Weakness, pattern, technique

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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