What’s Vulnerable › Vulnerabilities

CVE-2021-30547

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 3.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-06-15 · updated 2026-06-17
• Weakness: CWE-787

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.

Affected products

• Debian Linux: 9.0, 10.0
• Fedoraproject Fedora: 34
• Google Chrome: before 91.0.4472.101 — fixed in 91.0.4472.101
• Mozilla Firefox: before 97.0 — fixed in 97.0

How to fix

Upgrade to a fixed version: Google Chrome 91.0.4472.101; Mozilla Firefox 97.0. Check the vendor advisory for mitigations.

References

• https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html
• https://crbug.com/1210414
• https://lists.debian.org/debian-lts-announce/2021/07/msg00009.html
• https://lists.debian.org/debian-lts-announce/2021/07/msg00010.html
• 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/202202-03
• https://security.gentoo.org/glsa/202208-14
• https://www.debian.org/security/2021/dsa-4939
• https://www.debian.org/security/2021/dsa-4940
• https://chromereleases.googleblog.com/2021/06/stable-channel-update-for-desktop.html
• https://crbug.com/1210414

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