CVE-2020-16046Network attack vector

Arbitrary code execution via iOSWeb script injection

Published Jan 14, 2021 · Updated Aug 4, 2024

Script injection in iOSWeb in Google Chrome on iOS before 84.0.4147.105 allows remote attackers to execute arbitrary code via a crafted HTML page. Google has not published the specific iOSWeb locus or the input-handling error that permits script injection. Exploitation requires a user to load an attacker-controlled page in the affected mobile browser, where injected script runs with the browser's available privileges.

CVSS severity6.1
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Script injection in iOSWeb in Google Chrome on iOS before 84.0.4147.105 allows remote attackers to execute arbitrary code via a crafted HTML page. Google has not published the specific iOSWeb locus or the input-handling error that permits script injection. Exploitation requires a user to load an attacker-controlled page in the affected mobile browser, where injected script runs with the browser's available privileges.

The record

CVE
CVE-2020-16046
Published
Jan 14, 2021
Updated
Aug 4, 2024
Vendor
Google Cloud
Product
Google Chrome
Classifications
CWE-79, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 14, 2021CVE 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 <84.0.4147.105

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Google Cloud · Google Chromeversion=unspecified <84.0.4147.105

Published CVSS scores

6.1NIST National Vulnerability DatabaseCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
4.3NIST National Vulnerability DatabaseAV:N/AC:M/Au:N/C:N/I:P/A:N

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-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
T1203Exploitation for Client Execution

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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