CVE-2019-17067

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

PuTTY before 0.73 on Windows improperly opens port-forwarding listening sockets, which allows attackers to listen on the same port to steal an incoming connection.

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

CWE-770

Affected software

No affected versions have been published.

Timeline

Published: Oct 1, 2019
Last modified: Jun 17, 2026
NVD status: Modified

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