Dns — PoC Archivehttps://poc.intelseclab.com/tags/dns/Latest proof-of-concept entries.Hugoen-usSun, 05 Jul 2026 00:00:00 +0000rldns 1.3 Heap-Based Out-of-Bounds Read Remote DoS (CVE-2026-27831)https://poc.intelseclab.com/pocs/binary/2026-07-05_cve-2026-27831-rldns-heap-oob-read-dos/Sun, 05 Jul 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/binary/2026-07-05_cve-2026-27831-rldns-heap-oob-read-dos/Medium severity — binary · CVE-2026-27831. Status: PoC. Affects: rldns 1.3 (open-source DNS server). Tags: dns, heap-overflow, out-of-bounds-read, denial-of-service, rldns, memory-corruption, x86_64.binaryMediumdnsheap-overflowout-of-bounds-readdenial-of-servicerldnsmemory-corruptionx86_64PJSIP DNS Compression Pointer Heap Out-of-Bounds Read (CVE-2026-32945)https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-32945-pjsip-dns-oob-read/Sun, 05 Jul 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-32945-pjsip-dns-oob-read/Medium severity — network · CVE-2026-32945. Status: PoC. Affects: pjproject (PJSIP library) — used by Asterisk, FreeSWITCH, and other SIP applications. Tags: pjsip, pjproject, dns, heap-oob-read, denial-of-service, asterisk, freeswitch, sip.networkMediumpjsippjprojectdnsheap-oob-readdenial-of-serviceasteriskfreeswitchsipdnsmasq extract_addresses() RDLEN/RDATA Buffer Overflow — CVE-2026-5172https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-5172-dnsmasq-srv-rdlen-overflow/Sun, 05 Jul 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-5172-dnsmasq-srv-rdlen-overflow/Info severity — network · CVE-2026-5172. Status: PoC. Affects: dnsmasq (DNS forwarder/resolver). Tags: dnsmasq, dns, buffer-overflow, srv-record, rdlen, upstream-resolver, memory-corruption.networkInfodnsmasqdnsbuffer-overflowsrv-recordrdlenupstream-resolvermemory-corruptiondnsmasq EDNS Client Subnet (ECS) Response Validation Bypass (CVE-2026-4893)https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-4893-dnsmasq-ecs-spoofing/Sun, 05 Jul 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/network/2026-07-05_cve-2026-4893-dnsmasq-ecs-spoofing/Medium severity — network · CVE-2026-4893. Status: PoC. Affects: dnsmasq (DNS forwarder/cache). Tags: dnsmasq, dns, edns, ecs, rfc7871, cache-poisoning, spoofing, udp.networkMediumdnsmasqdnsednsecsrfc7871cache-poisoningspoofingudpc-ares TCP ares_getaddrinfo() Use-After-Free Code Executionhttps://poc.intelseclab.com/pocs/network/2026-07-03_c-ares-tcp-getaddrinfo-uaf/Fri, 03 Jul 2026 00:00:00 +0000https://poc.intelseclab.com/pocs/network/2026-07-03_c-ares-tcp-getaddrinfo-uaf/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.networkHighc-aresuse-after-freednsresolvertcpheap-corruptioncode-executionedns