high
8.8
CWE
416
Advisory Published
CVE Published
Updated

CVE-2021-21194: Use after free in screen capture

First published: Tue Feb 23 2021(Updated: )

Use after free in screen sharing in Google Chrome prior to 89.0.4389.114 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

Credit: chrome-cve-admin@google.com Leecraso 360 Alpha LabGuang Gong 360 Alpha Lab

Affected SoftwareAffected VersionHow to fix
debian/chromium
90.0.4430.212-1~deb10u1
116.0.5845.180-1~deb11u1
118.0.5993.70-1~deb11u1
116.0.5845.180-1~deb12u1
118.0.5993.70-1~deb12u1
118.0.5993.70-1
Google Chrome (Trace Event)<89.0.4389.114
89.0.4389.114
Google Chrome (Trace Event)<89.0.4389.114
Fedora=32
Fedora=33
Fedora=34

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Read MoreStart Free Trial

Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2021-21194?

    CVE-2021-21194 has been classified as high severity due to its potential for remote code execution via a crafted HTML page.

  • How do I fix CVE-2021-21194?

    To fix CVE-2021-21194, update Google Chrome to version 90.0.4430.212 or later.

  • What versions of Google Chrome are affected by CVE-2021-21194?

    CVE-2021-21194 affects Google Chrome versions prior to 89.0.4389.114.

  • Is this vulnerability related to screen sharing?

    Yes, CVE-2021-21194 is a use after free vulnerability specifically in the screen sharing feature of Google Chrome.

  • Can CVE-2021-21194 be exploited remotely?

    Yes, CVE-2021-21194 can potentially be exploited remotely, allowing attackers to execute arbitrary code.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2025 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203