CVE-2019-3859 MEDIUM

CVE-2019-3859

Vendor The Libssh2 Project
Product libssh2
Weakness CWE-125
Published March 20, 2019
Last update December 18, 2025
View on NVD All CVEs

CVSS base score

5.0/10
Attack vector Network
Attack complexity High
Privileges required None
User interaction Required
Confidentiality Low
Integrity Low

CVSS vector

CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:L/A:L

What the vulnerability does

01Description

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.

Key dates

02Disclosure timeline

March 20, 2019 CVE published
December 18, 2025 Record updated

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