CVE-2021-30547

Name: CVE-2021-30547
Creator: NVD / NIST
Published: 2021-06-15T22:15:08.93+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 3.58%

Last modified Jun 17, 2026

CVE-2021-30547 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.. EPSS estimates a 3.58% chance of exploitation in the next 30 days.

Description

Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

3.58%

87.9th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-787

Affected Software

Vendor	Product	Versions
Google	Chrome	< 91.0.4472.101
Debian	Debian Linux	9.0
Debian	Debian Linux	10.0
Fedoraproject	Fedora	34
Mozilla	Firefox	< 97.0

References

https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1210414Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00009.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00010.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
https://security.gentoo.org/glsa/202202-03Third Party Advisory
https://security.gentoo.org/glsa/202208-14Third Party Advisory
https://www.debian.org/security/2021/dsa-4939Third Party Advisory
https://www.debian.org/security/2021/dsa-4940Third Party Advisory
https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.htmlRelease Notes, Vendor Advisory
https://crbug.com/1210414Issue Tracking, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00009.htmlMailing List, Third Party Advisory
https://lists.debian.org/debian-lts-announce/2021/07/msg00010.htmlMailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/ETMZL6IHCTCTREEL434BQ4THQ7EOHJ43/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PAT6EOXVQFE6JFMFQF4IKAOUQSHMHL54/
https://security.gentoo.org/glsa/202202-03Third Party Advisory
https://security.gentoo.org/glsa/202208-14Third Party Advisory
https://www.debian.org/security/2021/dsa-4939Third Party Advisory
https://www.debian.org/security/2021/dsa-4940Third Party Advisory

Timeline

Published: Jun 15, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-30547?

Out of bounds write in ANGLE in Google Chrome prior to 91.0.4472.101 allowed a remote attacker to potentially perform out of bounds memory access via a crafted HTML page.

How severe is CVE-2021-30547?

CVE-2021-30547 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 3.58% probability of exploitation in the next 30 days.

How do I fix CVE-2021-30547?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2021-30547?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST