CVE-2021-21155

PoC —

CVSS 3.1

9.6 critical

EPSS

1%p69

Published

Feb 22, 2021 (Feb 22, 2021)

Modified

Jun 17, 2026

Description

Heap buffer overflow in Tab Strip in Google Chrome on Windows prior to 88.0.4324.182 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page.

Vendors: google fedoraproject
Products: chrome, fedora
Weakness: CWE-787
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

NVD CVE.org GitHub PoCs EPSS (1.3%)

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