<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>Edns — PoC Archive</title><link>https://poc.intelseclab.com/tags/edns/</link><description>Latest proof-of-concept entries.</description><generator>Hugo</generator><language>en-us</language><lastBuildDate>Sun, 05 Jul 2026 00:00:00 +0000</lastBuildDate><atom:link href="https://poc.intelseclab.com/tags/edns/index.xml" rel="self" type="application/rss+xml"/><item><title>dnsmasq EDNS Client Subnet (ECS) Response Validation Bypass (CVE-2026-4893)</title><link>https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-4893-dnsmasq-ecs-spoofing/</link><pubDate>Sun, 05 Jul 2026 00:00:00 +0000</pubDate><guid>https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-4893-dnsmasq-ecs-spoofing/</guid><description>Medium severity — network · CVE-2026-4893. Status: PoC. Affects: dnsmasq (DNS forwarder/cache). Tags: dnsmasq, dns, edns, ecs, rfc7871, cache-poisoning, spoofing, udp.</description><category>network</category><category>Medium</category><category>dnsmasq</category><category>dns</category><category>edns</category><category>ecs</category><category>rfc7871</category><category>cache-poisoning</category><category>spoofing</category><category>udp</category></item><item><title>c-ares TCP ares_getaddrinfo() Use-After-Free Code Execution</title><link>https://poc.intelseclab.com/pocs/network/2026-07-03_c-ares-tcp-getaddrinfo-uaf/</link><pubDate>Fri, 03 Jul 2026 00:00:00 +0000</pubDate><guid>https://poc.intelseclab.com/pocs/network/2026-07-03_c-ares-tcp-getaddrinfo-uaf/</guid><description>High severity — network · None assigned as of 2026-07-03. Status: PoC. Affects: c-ares (async DNS resolver library). Tags: c-ares, use-after-free, dns, resolver, tcp, heap-corruption, code-execution, edns.</description><category>network</category><category>High</category><category>c-ares</category><category>use-after-free</category><category>dns</category><category>resolver</category><category>tcp</category><category>heap-corruption</category><category>code-execution</category><category>edns</category></item></channel></rss>