CVE-2026-41096

CVE-2026-41096 - Crash PoC Heap overflow in DnsRawTruncateMessageForUdp dnsapi.dll. A crafted DNS response with QDCOUNT=0 and a large OPT record causes a 604-byte heap overflow when the truncation logic miscalculates the destination pointer. MSRC advisory:...

CVE-2026-41096-POC

the bug is at DnsQueryRaw function to be specific, inside DnsRawTruncateMessageForUdp so you need a program to call it. I could be wrong, but currently there isnt a service or default program in windows 11 that use this function, thats why i needed client.c. this repo has 2 files, client.c and...

Exploit for Heap-based Buffer Overflow in Microsoft

the bug is at DnsQueryRaw function to be specific, inside DnsRa...