CVE-2019-17067

CRITICAL

PuTTY < 0.73 - Unauthenticated Port Forwarding Connection Hijacking

Title source: llm
STIX 2.1

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.

References (2)

Core 2
Core References
Mailing List, Third Party Advisory x_refsource_misc
https://lists.tartarus.org/pipermail/putty-announce/2019/000029.html
Vendor Advisory x_refsource_confirm
https://security.netapp.com/advisory/ntap-20191127-0003/

Scores

CVSS v3 9.8
EPSS 0.0163
EPSS Percentile 73.2%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-770
Status published
Products (1)
putty/putty < 0.73
Published Oct 01, 2019
Tracked Since Feb 18, 2026