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iis denial of service

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Discussions on WindowsForum about IIS denial of service focus on the HTTP/2 Bomb technique, a memory exhaustion attack disclosed in June 2026 that affects Microsoft IIS along with other major web servers. The vulnerability exploits HTTP/2's default settings to cause denial of service by exhausting server memory. For IIS administrators, this highlights the need to review HTTP/2 configurations and apply mitigations. The broader theme is that long-standing web infrastructure assumptions can be recombined into new threats, emphasizing the importance of continuous security assessment for IIS deployments.
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    HTTP/2 Bomb DoS: AI-Assisted Memory Exhaustion Threat to IIS and Major Web Servers

    On June 3, 2026, researchers at Calif disclosed “HTTP/2 Bomb,” a denial-of-service technique reportedly found with OpenAI Codex that can exhaust memory on default HTTP/2 deployments of nginx, Apache httpd, Microsoft IIS, Envoy, and Cloudflare Pingora. The uncomfortable lesson is not that AI...
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    • availability attacks http2 security iis denial of service nginx apache envoy
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    • Forum: Windows News
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