Rapid7’s 2026 Global Cybersecurity Summit is now available on-demand.Watch sessions.
Rapid7

vulnerability

Huawei EulerOS: CVE-2019-3859: libssh2 security update

Severity
6
CVSS
(AV:N/AC:L/Au:N/C:P/I:N/A:P)
Published
Mar 21, 2019
Added
May 1, 2019
Modified
Apr 1, 2026

Description

An out of bounds read flaw was discovered in libssh2 before 1.8.1 in the _libssh2_packet_require and _libssh2_packet_requirev functions. A remote attacker who compromises a SSH server may be able to cause a Denial of Service or read data in the client memory.

Solution

huawei-euleros-2_0_sp2-upgrade-libssh2
Title
Rapid7 Labs

2026 Global Threat Landscape Report

The predictive window has collapsed. Exploitation follows disclosure in days. See how attackers are accelerating and how to stay ahead.