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Claude Mythos Finds 271 Firefox Vulnerabilities

📅 22 April 2026 at 11:27 UTC📰 Security WeekView original source ↗

All the flaws could have also been found by an elite human researcher, according to Mozilla. The post Claude Mythos Finds 271 Firefox Vulnerabilities appeared first on SecurityWeek.

🤖 AI BriefingAuto-generated threat analysis
🔍Threat Overview

Claude Mythos, a vulnerability scanner, discovered 271 vulnerabilities in Firefox, which could have been identified by an elite human researcher according to Mozilla.

⚙️Technical Details
Affected Systems
Firefox
Attack Vectors
vulnerability scanning
💥Impact Assessment
Severity: critical
Who Is at Risk
users of affected Firefox versions
🛡️Recommended Actions
1Update Firefox to the latest version
2Disable plugins and add-ons that are not necessary
3Use a reputable vulnerability scanner to monitor for future updates
📦Affected Products
Firefox

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