CVE-2019-3863

HighCVSS 8.8/10Last modified Oct 14, 2026

Description

A flaw was found in libssh2 before 1.8.1 creating a vulnerability on the SSH client side. A server could send a multiple keyboard interactive response messages whose total length are greater than unsigned char max characters. This value is used by the SSH client as an index to copy memory causing in an out of bounds memory write error.

Metrics

CVSS 3.0 8.8/10CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Mar 25, 2019
Last modified
Oct 14, 2026
NVD status
Modified

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CVE-2019-3863: High severity, CVSS 8.8 | Vulnix