CVE-2023-5997Network attack vector

Heap corruption via Garbage Collection use-after-free

Published Nov 15, 2023 · Updated Dec 16, 2025

Use-after-free in Google Chrome Garbage Collection before 119.0.6045.159 allows remote attackers to corrupt heap via crafted HTML pages. The Garbage Collection component accesses memory after it has been released, creating a stale-reference condition during page processing. Exploitation requires a victim to load attacker-controlled HTML; the documented consequence is heap corruption that can interrupt or compromise the browser process.

CVSS severity8.8
High
EPSS probability1.02%
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 Garbage Collection before 119.0.6045.159 allows remote attackers to corrupt heap via crafted HTML pages. The Garbage Collection component accesses memory after it has been released, creating a stale-reference condition during page processing. Exploitation requires a victim to load attacker-controlled HTML; the documented consequence is heap corruption that can interrupt or compromise the browser process.

The record

CVE
CVE-2023-5997
Published
Nov 15, 2023
Updated
Dec 16, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Nov 15, 2023CVE publishedPublication date reported by the CVE source.
  2. Dec 16, 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=119.0.6045.159 <119.0.6045.159

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=119.0.6045.159 <119.0.6045.159

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.

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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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