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CVE-2021-4102

Status: AnalyzedHigh (8.8)⚠ Active exploitation

Use after free in V8 in Google Chrome prior to 96.0.4664.110 allowed a remote attacker to potentially exploit heap corruption via a crafted HTML page.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

CISA KEV — actively exploited

🎯 ATT&CK techniques

How this vulnerability is exploited and what the attacker gains, in MITRE ATT&CK terms.

CWE-416 (use-after-free) en V8 con AV:N/UI:R permite ejecución remota via página HTML maliciosa. Vector CVSS confirma confidencialidad e integridad comprometidas.

Inferred by our analysis agent from the official description, CVSS vector and CWE, and checked by a supervisor. May contain errors.

🛡️ ATT&CK mitigations that cover these techniques

Restrict Web-Based ContentRestrict File and Directory PermissionsPrivileged Account ManagementRemote Data StorageLimit Software InstallationExecution Prevention

Affected technologies (1)

Google — Chrome

CWEs

References

Raw JSON (NVD)

Show
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    }
  ],
  "lastModified": "2026-06-17T04:19:02.250",
  "cisaActionDue": "2021-12-29",
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  "cisaRequiredAction": "Apply updates per vendor instructions.",
  "cisaVulnerabilityName": "Google Chromium V8 Use-After-Free Vulnerability"
}