CVE-2021-47759CWE-522

MTPutty 1.0.1.21 - SSH Password Disclosure

Medium · published January 15, 2026

CVSS v4.0
6.8
EPSS
0%
Percentile
1.5
In the wild
Unconfirmed
What it is

MTPutty 1.0.1.21 contains a sensitive information disclosure vulnerability that allows local attackers to view SSH connection passwords through Windows PowerShell process listing. Attackers can run a PowerShell command to retrieve the full command line of MTPutty processes, exposing plaintext SSH credentials.

The record
Technical detail
CVSS v4.0
6.8 · MEDIUM
Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
EPSS
0.00115 · 1.5th percentile
Weakness
CWE-522 · Insufficiently Protected Credentials
Published
2026-01-15T15:52Z
EPSS history
Timeline
  • 15 JAN 15:52Z
    MTPutty 1.0.1.21 - SSH Password Disclosure
    cvelistv5