CVE-2021-21193: Google Chromium Blink Use-After-Free Vulnerability
Description
CVE-2021-21193 is a use-after-free vulnerability in Google Chromium Blink that allows remote attackers to potentially cause heap corruption via a crafted HTML page. This vulnerability affects multiple Chromium-based browsers such as Google Chrome, Microsoft Edge, and Opera. It has been exploited in the wild, indicating active attacks leveraging this flaw.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Google Chromium Blink contains a use-after-free vulnerability identified as CVE-2021-21193. This flaw allows remote attackers to trigger heap corruption by crafting malicious HTML content. The vulnerability impacts multiple browsers built on Chromium, including Google Chrome, Microsoft Edge, and Opera. Exploitation of this vulnerability has been observed in the wild, underscoring its practical risk. No explicit patch or remediation details are provided in the input data.
Potential Impact
Successful exploitation of this use-after-free vulnerability can lead to heap corruption, which may allow remote attackers to execute arbitrary code or cause denial of service in affected Chromium-based browsers. The presence of known exploits in the wild increases the urgency and risk associated with this vulnerability.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Users and administrators should monitor official Google Chromium security advisories for updates and apply patches promptly once available. Until a patch is applied, cautious browsing and avoiding untrusted web content may reduce exposure.
Threat ID: 6adc6f603fe894698b2dd9d1
Added to database: 10/24/2026, 08:42:08 UTC
Last enriched: 10/24/2026, 09:20:50 UTC
Last updated: 10/24/2026, 09:30:24 UTC
Views: 3
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