8.8
High
CVE-2021-21220 Google Chromium V8 Improper Input Validation Vulnerability
Active exploitation observed
· CISA KEV catalogue
Required action
Apply updates per vendor instructions.
Ransomware campaigns
Not observed so far
Weakness
CWE-20, CWE-122
Description
Insufficient validation of untrusted input in V8 in Google Chrome prior to 89.0.4389.128 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Chrome 89.0 | earliest → < 89.0.4389.128 | 89.0.4389.128 |
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