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CVE-2021-21166 High

Confirmed as exploited

CVE-2021-21166

Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Exploit probability 23.8%
Published March 9, 2021
Required by November 17, 2021
Last source change April 16, 2026

01 / ACTION

Required action

Apply updates per vendor instructions.

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

03 / CONNECTIONS

Connected vulnerabilities

related OPENSUSE-SU-2024:10681-1
related OPENSUSE-SU-2024:12948-1

04 / EVIDENCE

Source records

Cybersecurity and Infrastructure Security Agency Known Exploited Vulnerabilities CVE-2021-21166

Google Chromium contains a race condition vulnerability that allows a remote attacker to potentially exploit heap corruption via a crafted HTML page. This vulnerability could affect multiple web browsers that utilize Chromium, including, but not limited to, Google Chrome, Microsoft Edge, and Opera.

View original source
Open Source Vulnerabilities CVE-2021-21166

Data race in audio in Google Chrome prior to 89.0.4389.72 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

View original source

05 / REFERENCES

Further evidence