CVE-2026-6362Network attack vectorHinoki check available

Out-of-bounds memory access via codec use-after-free

Published Apr 15, 2026 · Updated May 26, 2026

Use-after-free in Google Chrome Codecs before 147.0.7727.101 allows remote attackers out-of-bounds memory access via a crafted video file. Google has not disclosed the specific codec function or object-lifetime error that leaves freed memory reachable during video processing. Exploitation requires Chrome to process attacker-supplied video; the published CISA assessment identifies limited confidentiality impact, not code execution.

CVSS severity4.3
Medium
EPSS probability0.22%
Next 30 days · Oct 19, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Use-after-free in Google Chrome Codecs before 147.0.7727.101 allows remote attackers out-of-bounds memory access via a crafted video file. Google has not disclosed the specific codec function or object-lifetime error that leaves freed memory reachable during video processing. Exploitation requires Chrome to process attacker-supplied video; the published CISA assessment identifies limited confidentiality impact, not code execution.

The record

CVE
CVE-2026-6362
Published
Apr 15, 2026
Updated
May 26, 2026
Vendor
WebM Project
Product
Chrome
Classifications
CWE-416, T1204.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 15, 2026CVE publishedPublication date reported by the CVE source.
  2. May 26, 2026Record 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 version<147.0.7727.101

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

WebM Project · Chrome<147.0.7727.101

Published CVSS scores

4.3CISA ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N
6.3GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L

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.

Activity data is delayed. The latest report is Sep 28, 2026.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 22, 2026Sep 28, 2026
Latest reporting daySep 28, 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
T1204.002User Execution: Malicious File

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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