K000163051: libssh2 vulnerability CVE-2026-55200

Security Advisory Description libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2transportread that fails to enforce upper bounds on packetlength field. Remote attackers can send crafted SSH packets with excessively large packetlength values to...

The vulnerability of the ssh2_transport_read() function in the libssh2 library, which allows a hacker to execute arbitrary code.

The vulnerability of the ssh2transportread function in the libssh2 library is related to buffer overflows due to integer overflows. Exploiting this vulnerability could allow a remote attacker to execute arbitrary code using specially crafted SSH packets...

SUSE CVE-2026-55200

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2transportread that fails to enforce upper bounds on packetlength field. Remote attackers can send crafted SSH packets with excessively large packetlength values to corrupt heap memory and achieve...

Out-of-bounds Write

Overview Affected versions of this package are vulnerable to Out-of-bounds Write through the ssh2transportread function in transport.c when processing SSH packets with excessively large packetlength values. An attacker can corrupt heap memory and potentially execute arbitrary code by sending...

CVE-2026-55200

CVE-2026-55200 affects libssh2 up to version 1.11.1. The vulnerability is an out-of-bounds write in ssh2_transport_read() caused by failure to enforce upper bounds on packet_length, allowing remote attackers to send crafted SSH packets to corrupt heap memory and achieve remote code execution. The...

CVE-2026-55200: Integer Overflow to Buffer Overflow

libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2transportread that fails to enforce upper bounds on packetlength field. Remote attackers can send crafted SSH packets with excessively large packetlength values to corrupt heap memory and achieve...