CVE-2017-6542

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

The ssh_agent_channel_data function in PuTTY before 0.68 allows remote attackers to have unspecified impact via a large length value in an agent protocol message and leveraging the ability to connect to the Unix-domain socket representing the forwarded agent connection, which trigger a buffer overflow.

Metrics

CVSS 3.0 9.8/10CVSS:3.0/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
Mar 27, 2017
Last modified
Jun 17, 2026
NVD status
Modified

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CVE-2017-6542: Critical severity, CVSS 9.8 | Vulnix