CVE-2026-56766P2HIGHCVSS 8.8PoC≤ 9.72026-06-25
CVE-2026-56766 [HIGH] CWE-121 CVE-2026-56766: Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication
Hydra through 9.7, fixed in commit 9cc84c2, contains a stack buffer overflow in NTLM authentication across SMTP, POP3, IMAP, NNTP, HTTP, HTTP-Proxy, and HTTP-Proxy-Urlenum modules when processing malicious NTLM Type-2 challenges. A malicious server can send a crafted NTLM Type-2 challenge with an excessively long domain string, causing base64-encoded r
nvd