CVE-2022-4436Network attack vector

Heap corruption via invalidated media-player iterator

Published Dec 14, 2022 · Updated Aug 3, 2024

Use-after-free in Blink Media in Google Chrome before 108.0.5359.124 allows remote attackers to corrupt heap memory via crafted HTML. MediaInspectorContextImpl::CullPlayers iterates dead_players_ while event removal can trigger garbage collection that appends players, reallocates the vector, and invalidates the active iterator. A victim must load attacker-controlled HTML; the resulting corruption occurs in the browser renderer and remains subject to Chrome's sandbox.

CVSS severity8.8
High
EPSS probability0.63%
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 Blink Media in Google Chrome before 108.0.5359.124 allows remote attackers to corrupt heap memory via crafted HTML. MediaInspectorContextImpl::CullPlayers iterates dead_players_ while event removal can trigger garbage collection that appends players, reallocates the vector, and invalidates the active iterator. A victim must load attacker-controlled HTML; the resulting corruption occurs in the browser renderer and remains subject to Chrome's sandbox.

The record

CVE
CVE-2022-4436
Published
Dec 14, 2022
Updated
Aug 3, 2024
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-416, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2024Record 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 <108.0.5359.124

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <108.0.5359.124

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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