CYFIRMA Research
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CYFIRMA Research
CYFIRMA Research- CVE-2025-8671 – HTTP/2 MadeYouReset Vulnerability DDoS Attacks
Critical Alert: CVE-2025-8671 – HTTP/2 “MadeYouReset” DoS Vulnerability
Organizations operating HTTP/2-enabled infrastructure—such as Apache Tomcat, Netty, F5 BIG-IP, Jetty, and other affected stacks—must act swiftly. This newly uncovered flaw enables attackers to bypass HTTP/2 stream-concurrency protections and trigger unbounded backend processing by exploiting mismatched stream reset handling, leading to severe Denial-of-Service (DoS) conditions.
This vulnerability demands urgent attention—its low-complexity technique and global exposure pose a high-priority threat to web infrastructure availability.
Link to the Research Report: https://www.cyfirma.com/research/cve-2025-8671-http-2-madeyoureset-vulnerability-ddos-attack/
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