CVE-2026-40194

phpseclib is a PHP secure communications library. Starting in 0.1.1 and prior to 3.0.51, 2.0.53, and 1.0.28, phpseclib\Net\SSH2::getbinarypacket uses PHP's != operator to compare a received SSH packet HMAC against the locally computed HMAC. != on equal-length binary strings in PHP uses memcmp,...

EUVD-2004-1437

Malware in sbrugna...

CVE-2010-0137: Undefined Security Weakness

Unspecified vulnerability in the sshdchildhandler process in the SSH server in Cisco IOS XR 3.4.1 through 3.7.0 allows remote attackers to cause a denial of service process crash and memory consumption via a crafted SSH2 packet, aka Bug ID CSCsu10574...

CVE-2004-1440: Undefined Security Weakness

Multiple heap-based buffer overflows in the modpow function in PuTTY before 0.55 allow 1 remote attackers to execute arbitrary code via an SSH2 packet with a base argument that is larger than the mod argument, which causes the modpow function to write memory before the beginning of its buffer, an...

PuTTY SSH2 buffer overflow

Buffer overflow on SSH2MSGDEBUG packet processing...