CVE-2021-21193

HIGHCISA KEV

8.8

Description

Use after free in Blink in Google Chrome prior to 89.0.4389.90 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

Published3/16/2021

Last Modified10/24/2025

Sourcekev

Honeypot Sightings0

CISA KEV

VendorGoogle

ProductChromium Blink

Vulnerability NameGoogle Chromium Blink Use-After-Free Vulnerability

KEV Date Added2021-11-03

Remediation Due Date2021-11-17

Ransomware UseUnknown

Affected Products

debian:debian_linuxfedoraproject:fedoragoogle:chrome

Weaknesses (CWE)

CWE-416CWE-416

References

https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html(chrome-cve-admin@google.com)

https://crbug.com/1186287(chrome-cve-admin@google.com)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/(chrome-cve-admin@google.com)

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

https://www.debian.org/security/2021/dsa-4886(chrome-cve-admin@google.com)

https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html(af854a3a-2127-422b-91ae-364da2661108)

https://crbug.com/1186287(af854a3a-2127-422b-91ae-364da2661108)

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/(af854a3a-2127-422b-91ae-364da2661108)

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

https://www.debian.org/security/2021/dsa-4886(af854a3a-2127-422b-91ae-364da2661108)

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21193(134c704f-9b21-4f2e-91b3-4a467353bcc0)

IOC Correlations

No correlations recorded

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