CVE-2019-17455

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

Libntlm through 1.5 relies on a fixed buffer size for tSmbNtlmAuthRequest, tSmbNtlmAuthChallenge, and tSmbNtlmAuthResponse read and write operations, as demonstrated by a stack-based buffer over-read in buildSmbNtlmAuthRequest in smbutil.c for a crafted NTLM request.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

Affected software

No affected versions have been published.

Timeline

Published
Oct 10, 2019
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2019-17455: Critical severity, CVSS 9.8 | Vulnix