CVE-2019-5797Network attack vector

Heap corruption via DOMStorage double free

Published Sep 29, 2022 · Updated May 20, 2025

Double free in DOMStorage in Google Chrome before 73.0.3683.75 allows remote attackers to corrupt heap memory via crafted HTML. A race in DOMStorage causes the same allocation to be freed twice while processing page-controlled storage operations. A user must render attacker-controlled HTML; successful exploitation corrupts browser memory, while public records do not establish a browser-sandbox escape.

CVSS severity7.5
High
EPSS probability2.88%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Double free in DOMStorage in Google Chrome before 73.0.3683.75 allows remote attackers to corrupt heap memory via crafted HTML. A race in DOMStorage causes the same allocation to be freed twice while processing page-controlled storage operations. A user must render attacker-controlled HTML; successful exploitation corrupts browser memory, while public records do not establish a browser-sandbox escape.

The record

CVE
CVE-2019-5797
Published
Sep 29, 2022
Updated
May 20, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-415, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 29, 2022CVE publishedPublication date reported by the CVE source.
  2. May 20, 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=unspecified <73.0.3683.75

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <73.0.3683.75

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
7.5CISA-ADPCVSS:3.1/AV:N/AC:H/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-415Double 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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