2025 Talos Year in Review: Speed, scale, and staying power
Summary: Cisco Talos' 2025 Year in Review reports that new vulnerabilities were operationalized almost immediately while adversaries kept exploiting CVEs exposed for years - React2Shell, released in December, ranked first by year's end only three weeks after disclosure, and a vulnerability disclosed 12 years ago ranked seventh. Talos also found attackers concentrated on authentication, authorization, and device trust, and that roughly 25% of the vulnerabilities in its Top 100 targeted list affected widely used frameworks and libraries embedded deep in the software stack.
What you should know: A vulnerability disclosed 12 years ago still ranked seventh among the most exploited, and a quarter of the Top 100 sat in shared frameworks and libraries - so one CVE in a component you may not track can create mass exploitation potential across your environment.
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