CVE-2021-21220

HIGHCISA KEV

8.8

Description

Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVE Details

CVSS v3.1 Score8.8

SeverityHIGH

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published4/26/2021

Last Modified10/24/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorGoogle

ProductChromium V8

Vulnerability NameGoogle Chromium V8 Improper Input Validation Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseUnknown

Affected Products

fedoraproject:fedoragoogle:chrome

Weaknesses (CWE)

CWE-787CWE-787

References

http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html(chrome-cve-admin@google.com)

http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html(chrome-cve-admin@google.com)

https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html(chrome-cve-admin@google.com)

https://crbug.com/1196683(chrome-cve-admin@google.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/(chrome-cve-admin@google.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/(chrome-cve-admin@google.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/(chrome-cve-admin@google.com)

https://security.gentoo.org/glsa/202104-08(chrome-cve-admin@google.com)

http://packetstormsecurity.com/files/162437/Google-Chrome-XOR-Typer-Out-Of-Bounds-Access-Remote-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

http://packetstormsecurity.com/files/176210/Chrome-V8-JIT-XOR-Arbitrary-Code-Execution.html(af854a3a-2127-422b-91ae-364da2661108)

https://chromereleases.googleblog.com/2021/04/stable-channel-update-for-desktop.html(af854a3a-2127-422b-91ae-364da2661108)

https://crbug.com/1196683(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/EAJ42L4JFPBJATCZ7MOZQTUDGV4OEHHG/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/U3GZ42MYPGD35V652ZPVPYYS7A7LVXVY/(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VUZBGKGVZADNA3I24NVG7HAYYUTOSN5A/(af854a3a-2127-422b-91ae-364da2661108)

https://security.gentoo.org/glsa/202104-08(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21220(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

This product uses data from the NVD API but is not endorsed or certified by the NVD.