CVE-2022-2859Public exploitNetwork attack vector

Heap corruption via Phone Hub manager use-after-free

Published Sep 26, 2022 · Updated May 21, 2025

Use-after-free in Chrome OS Shell in Google Chrome before 104.0.5112.101 allows remote attackers to corrupt heap memory through UI interactions. MultidevicePhoneHubHandler can replace a uniquely owned fake Phone Hub manager while PhoneHubUiController retains its raw pointer, which cleanup then dereferences after the object is freed. Exploitation requires specific user interface actions, and the published record establishes no post-corruption outcome beyond attacker-controlled heap corruption.

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 Chrome OS Shell in Google Chrome before 104.0.5112.101 allows remote attackers to corrupt heap memory through UI interactions. MultidevicePhoneHubHandler can replace a uniquely owned fake Phone Hub manager while PhoneHubUiController retains its raw pointer, which cleanup then dereferences after the object is freed. Exploitation requires specific user interface actions, and the published record establishes no post-corruption outcome beyond attacker-controlled heap corruption.

The record

CVE
CVE-2022-2859
Published
Sep 26, 2022
Updated
May 21, 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 21, 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 <104.0.5112.101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <104.0.5112.101

Published CVSS scores

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

Weakness, pattern, technique

CWE-416Use After Free
T1203Exploitation for Client Execution

Public exploit references

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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