CVE-2021-30554

high

Description

Use after free in WebGL in Google Chrome prior to 91.0.4472.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

References

https://security.gentoo.org/glsa/202107-06

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/

https://www.tenable.com/cyber-exposure/2021-threat-landscape-retrospective

https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2021-30554

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-17475

https://crbug.com/1219857

https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop_17.html

Details

Source: Mitre, NVD

Published: 2021-07-02

Updated: 2026-06-17

Known Exploited Vulnerability (KEV)

Risk Information

CVSS v2

Base Score: 6.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:P

Severity: Medium

CVSS v3

Base Score: 8.8

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

Severity: High

EPSS

EPSS: 0.07367

Detections

Analytics