CVE-2020-6379Network attack vector

Heap corruption via object use-after-free

Published Feb 11, 2020 · Updated Aug 4, 2024

Use-after-free in Google Chrome before 79.0.3945.130 allows remote attackers to corrupt heap memory via a crafted HTML page. The CVE record places the lifetime error in V8, while Google's release bulletin labels the affected component as the speech recognizer; neither source identifies the freed object or faulty operation. A user must load attacker-controlled HTML, and the available sources establish potential heap corruption but do not disclose a more specific post-corruption outcome.

CVSS severity8.8
High
EPSS probability1.18%
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 before 79.0.3945.130 allows remote attackers to corrupt heap memory via a crafted HTML page. The CVE record places the lifetime error in V8, while Google's release bulletin labels the affected component as the speech recognizer; neither source identifies the freed object or faulty operation. A user must load attacker-controlled HTML, and the available sources establish potential heap corruption but do not disclose a more specific post-corruption outcome.

The record

CVE
CVE-2020-6379
Published
Feb 11, 2020
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-787, CWE-416, T1189
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Feb 11, 2020CVE publishedPublication date reported by the CVE source.
  2. Aug 4, 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 <79.0.3945.130

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <79.0.3945.130

Published CVSS scores

6.8NIST NVDAV:N/AC:M/Au:N/C:P/I:P/A:P
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-787Out-of-bounds Write
CWE-416Use After Free
T1189Drive-by Compromise

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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