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CVE-2021-21193 | Mondoo Vulnerability Intelligence

Vulnerability IntelligenceCVE-2021-21193

CVE-2021-21193

HIGH8.8

Use after free in Blink in Google Chrome prior to 89

Published Mar 16, 2021

Modified 4 months ago

Fix available

Details

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.

Affected Packages

Google Chrome

Windows 10 (1507)Windows 10 (1607) / Server 2016Windows 10 (1809) / Server 2019Windows 10 (1903)Windows 10 (1909)

Fixed in:

89.0.4389.90

References

WEB

https://chromereleases.googleblog.com/2021/03/stable-channel-update-for-desktop_12.html

WEB

https://crbug.com/1186287

ADVISORY

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N52OWF4BAP3JNK2QYGU3Q6QUVDZDCIMQ/

ADVISORY

https://security.gentoo.org/glsa/202104-08

WEB

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-21193

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2021-21193

ADVISORY

https://www.debian.org/security/2021/dsa-4886

CVSS Analysis

CVSS v3.1

8.8

Exploitability

Attack Vector

NetworkAV:N

Attack Complexity

LowAC:L

Privileges Required

NonePR:N

User Interaction

RequiredUI:R

Scope

UnchangedS:U

Impact

Confidentiality

HighC:H

Integrity

HighI:H

Availability

HighA:H

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

Ecosystems(20)

Windows 10 (1507)Windows 10 (1607) / Server 2016 Windows 10 (1809) / Server 2019 Windows 10 (1903)Windows 10 (1909)

Timeline

PublishedMar 16, 2021

ModifiedOct 21, 2025