CVE-2022-3046Network attack vector

Heap corruption via Browser Tag use-after-free

Published Sep 26, 2022 · Updated May 22, 2025

Use-after-free in Google Chrome's Browser Tag before 105.0.5195.52 allows attackers to corrupt heap memory through a crafted HTML page. The Browser Tag component accesses an object after its storage has been freed, but Google has not disclosed the specific object or code path. The attack requires convincing a user to install a malicious extension and then process crafted HTML; successful heap corruption can expose or modify browser data or crash the browser.

CVSS severity8.8
High
EPSS probability0.80%
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's Browser Tag before 105.0.5195.52 allows attackers to corrupt heap memory through a crafted HTML page. The Browser Tag component accesses an object after its storage has been freed, but Google has not disclosed the specific object or code path. The attack requires convincing a user to install a malicious extension and then process crafted HTML; successful heap corruption can expose or modify browser data or crash the browser.

The record

CVE
CVE-2022-3046
Published
Sep 26, 2022
Updated
May 22, 2025
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 26, 2022CVE publishedPublication date reported by the CVE source.
  2. May 22, 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 <105.0.5195.52

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <105.0.5195.52

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
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-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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