CVE-2026-55200 - libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c

CVE-2026-55200 - libssh2 - Out-of-Bounds Write via Unchecked packet_length in transport.c

https://cvefeed.io/rssfeed/latest.atom / Wed, 06/17/2026 - 23:45
CVE ID :CVE-2026-55200
Published : June 17, 2026, 7:03 p.m. | 2 hours, 35 minutes ago
Description :libssh2 through 1.11.1, fixed in commit 7acf3df contains an out-of-bounds write vulnerability in ssh2_transport_read() that fails to enforce upper bounds on packet_length field. Remote attackers can send crafted SSH packets with excessively large packet_length values to corrupt heap memory and achieve remote code execution.
Severity: 9.2 | CRITICAL
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